What fuel pressure regulator are you boosted guys running? - Page 5

zukiracer19 · 06-12-2010, 05:56 PM

i keep getting a code for my IAT sensor, I think thats what it is... but it hasnt come up in awhile? when i wired the maf back up after cutting all wires to look at it. When I rewired them all the wires were faded and were hard to tell the colors apart so im not sure if i didnt hook iat up to wrong thing. shouldnt be the problem of the starting though...

AaronGTR · 06-13-2010, 08:24 AM

Yeah, that hard line on the back is the supply line for the heater core. It has an O-ring on it where it goes into the LIM, and there is a tab welded on part way back with a notch that goes over a stud on the rear head, and a 13mm nut that is supposed to go over that. That is what holds it in.

The other problem... not sure but if the fuel pump was failing I doubt it would go rich. Should go the other way around and go lean, or shut off all together.

zukiracer19 · 06-13-2010, 08:40 AM

would that be the car going into limp mode?i just dont understand what would cause it to go that rich while driving.

AaronGTR · 06-13-2010, 12:32 PM

Sticking injector or a bad O2 sensor could do that.

zukiracer19 · 06-13-2010, 03:15 PM

code 1626 keeps popping up... explains why it dont want to start and security light flashes and such... and why PCM could be going nuts. just dont know where to start with it.

AleroB888 · 06-13-2010, 04:17 PM

Quote:

Originally Posted by zukiracer19

code 1626 keeps popping up... explains why it dont want to start and security light flashes and such... and why PCM could be going nuts. just dont know where to start with it.

hard to say....... I changed that code status in my PCM to "no error reported" because it kept showing up even if I had no actual problems going on. I think that is because I am using a 2001 PCM file instead of the original 1999 file.

I was not getting the flashing security light, though.

zukiracer19 · 06-13-2010, 07:31 PM

yeah like i have loads of trouble trying to start my car after i drive it around. it will start up instantly after like 2nd crank, i could pull it out of my driveway, shut it off, and it wont start for half an hour, and fuel cut out like crazy... anyone have an idea? i was watching my gauges on DHP, i couldnt even get above 3 grand without breakage... injector pw goes to about 6, i dont get any KR, i reset trims, my LTFT was 3 % and stft went from like -5-5 but a/f was like fine?

zukiracer19 · 06-14-2010, 10:46 AM

Also for Fuel Pump installation. What do we do about the fuel filter with the prongs broken off? dropped tank but cant any of hoses off going to it.. they got weird fittings, one seems like it has a flare on the end and other one goes to fuel filter and i cant even get that off.

WidbyJ · 06-14-2010, 04:10 PM

Plastic GM Fuel Filter tool at Autozone works very well at releasing the 'clip' connectors - buy em. Unless you want to replace the lines be careful working the remains out....

zukiracer19 · 06-14-2010, 07:06 PM

The only concerns i have now is that i have a vaccum leak somewhere, and i cannot freaking figure out where, i redid whole intercooler charge piping, everything, vaccum lines, made sure bov wasnt sticking open.

But another concern is my spark advance, idles around 30 degrees, slow accel it goes to 11, if i wot it goes to 40

06-15-2010, 11:10 AM

Quote:

Originally Posted by WidbyJ

Plastic GM Fuel Filter tool at Autozone works very well at releasing the 'clip' connectors - buy em. Unless you want to replace the lines be careful working the remains out....

no gm tool is gonna get the fuel filter off.. the 1 side of prongs are broken off they were like dry rotted and soon as u push them in they snapped. people never changed it...

another thing i was wondering. i noticed i start my car ever since security light came on(thats when it started not being able to touch boost) it shuts off if i dont give it any gas or idle, i start it, shuts off right away.

zukiracer19 · 06-17-2010, 10:01 PM

what is everyones spark advance that is boosted at idle? and during wot? i think i need to retune mine

zukiracer19 · 06-19-2010, 12:31 PM

So does anyone want a parts car for 5,000$? mods are well over what its worth.

lvemy3100 · 06-21-2010, 09:34 AM

so now whats the problem???

zukiracer19 · 06-21-2010, 01:44 PM

not sure keep getting security code 1626, car breaks up horribly and when it shuts off fuel pump dont turn on until i turn security code off... checked fuses, no dice... whats this passlock thing i've been searching? would that honestly make the car run like dump? maybe fuel pump is failing or something I don't know. when I first had it out right after i got it back together it was running like a raped ape, now security code and breaks up.

zukiracer19 · 06-21-2010, 03:52 PM

lvemy3100 · 06-21-2010, 05:57 PM

Service InformationThe Vehicle Theft Deterrent system is incorporated within the Body Control Module (BCM). The PCM monitors the state of heal the serial data message from the theft deterrent system to ensure that the PCM-BCM communications is established. If the PCM detects a loss of the state of health message while the engine is running, DTC P 1626 will be set. DTC P1626 can cause a no start condition or normal operation depending on when the loss of communication was detected. The engine will continue to start and run if the condition that set DTC P1626 occurred after the PCM received a valid theft deterrent password from the BCM and already allowed fuel during the ignition cycle. The engine will start and immediately stall if the condition that set the DTC occurred before the PCM received a valid theft deterrent password. With this condition present, the PCM will inhibit fuel delivery and disable the starter until a valid theft deterrent password is detected.
Conditions for Setting the DTC

The PCM cannot communicate with the theft deterrent system.
Action Taken When the DTC Sets

The PCM stores conditions which were present when the DTC set as Failure Records only. This information will not be stored as Freeze Frame Records.
Conditions for Clearing the MIL/DTC

The DTC becomes history when the conditions for setting the DTC are no longer present.
The history DTC clears after 40 malfunction free warm-up cycles.
The PCM receives a clear code command from the scan tool.

Diagnostic Aids

Attempting to start the vehicle by bypassing the theft deterrent system or substituting parts without performing the password learn procedure may set a DTC P1631.
If no password is received a DTC P1610, and P1631 may also be set.
An intermittent may be caused by a poor connection, rubbed through wire insulation or a wire broken inside the insulation.
Any circuitry, that is suspected as causing an intermittent complaint, should be thoroughly checked for the following items:

Backed out terminals or improper mating.
Broken locks.
Improperly formed or damaged terminals.
Poor terminal to wiring connections.
Physical damage to the wiring harness.
Corrosion.

If the Body Control Module (BCM) is replaced, the PCM must be reflashed to allow the new password to be learned. The ignition must be turned off for at least 30 seconds then on for the PCM to learn the new BCM password.
Test Description

Number(s) below refer to the step number(s) on the Diagnostic Table:

The Powertrain OBD System Check prompts the technician to complete some basic checks and store the freeze frame and failure records data on the scan tool if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference.
A scan tool that cannot display PCM data indicates that a short exists on the serial data circuit.
The replacement PCM must be reprogrammed and the crankshaft position system variation procedure must be performed.
If the serial data loss occurred after a good theft password has been received, the PCM must be reprogrammed and the password learn and the crankshaft position variation learn procedures must be completed to allow the theft system to operate properly. Refer to PCM Replacement/Programming, CKP System Variation Learn Procedure and Password Learn Procedure for reprogramming procedures.
If the serial data circuit to the Body Control Module (BCM) was not open, then the serial communication loss to the PCM lies within the BCM. Refer to Body Control Module portion of the service manual for Passlock diagnosis.
If no malfunctions have been found at this point and no additional DTCs were set, refer to Diagnostic Aids for additional checks and information.

Mac0083 · 06-21-2010, 07:55 PM

thanks for the update, nice vid. but are those birds chirping in the background? or is it a squeeky belt?

zukiracer19 · 06-22-2010, 07:30 AM

i just seen that 3/4 of way up on my cam shaft positioning sensor the 2 wires are rubbed through barley... gonna pull it off when i get back home here in a couple hours and put some heatshrink on it.

zukiracer19 · 06-22-2010, 07:30 AM

Quote:

Originally Posted by Mac0083

thanks for the update, nice vid. but are those birds chirping in the background? or is it a squeeky belt?

the water pump has been making that noise lately.

06-13-2010, 08:24 AM	#82
AaronGTR BlingWithBallz AKA: Aaron Join Date: Aug 2002 Location: Detroit area, MI Age: 43 Posts: 12,254 Vehicle: 2000 Grand Am GT1 2dr	Yeah, that hard line on the back is the supply line for the heater core. It has an O-ring on it where it goes into the LIM, and there is a tab welded on part way back with a notch that goes over a stud on the rear head, and a 13mm nut that is supposed to go over that. That is what holds it in. The other problem... not sure but if the fuel pump was failing I doubt it would go rich. Should go the other way around and go lean, or shut off all together. __________________ The few, the proud, the boosted! 13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011) See it here. the total package.

06-13-2010, 12:32 PM	#84
AaronGTR BlingWithBallz AKA: Aaron Join Date: Aug 2002 Location: Detroit area, MI Age: 43 Posts: 12,254 Vehicle: 2000 Grand Am GT1 2dr	Sticking injector or a bad O2 sensor could do that. __________________ The few, the proud, the boosted! 13.788 @ 103.73 mph (3/2011) 320 whp and 300 ft/lbs torque. (3/2011) See it here. the total package.

06-21-2010, 09:34 AM	#94
lvemy3100 Im President Charley AKA: mp Join Date: Dec 2005 Location: place Posts: 2,040 Vehicle: 01 car	so now whats the problem??? __________________ -Mark You want more power? You need MP Racing! ------ Now drink with me deeply of the bourbon, scotch, and rye until such time as we are fighting drunk. Then we shall find, and beat the a**es of, the nonbelievers who ruined my feast.

06-21-2010, 05:57 PM	#97
lvemy3100 Im President Charley AKA: mp Join Date: Dec 2005 Location: place Posts: 2,040 Vehicle: 01 car	Service InformationThe Vehicle Theft Deterrent system is incorporated within the Body Control Module (BCM). The PCM monitors the state of heal the serial data message from the theft deterrent system to ensure that the PCM-BCM communications is established. If the PCM detects a loss of the state of health message while the engine is running, DTC P 1626 will be set. DTC P1626 can cause a no start condition or normal operation depending on when the loss of communication was detected. The engine will continue to start and run if the condition that set DTC P1626 occurred after the PCM received a valid theft deterrent password from the BCM and already allowed fuel during the ignition cycle. The engine will start and immediately stall if the condition that set the DTC occurred before the PCM received a valid theft deterrent password. With this condition present, the PCM will inhibit fuel delivery and disable the starter until a valid theft deterrent password is detected. Conditions for Setting the DTC The PCM cannot communicate with the theft deterrent system. Action Taken When the DTC Sets The PCM stores conditions which were present when the DTC set as Failure Records only. This information will not be stored as Freeze Frame Records. Conditions for Clearing the MIL/DTC The DTC becomes history when the conditions for setting the DTC are no longer present. The history DTC clears after 40 malfunction free warm-up cycles. The PCM receives a clear code command from the scan tool. Diagnostic Aids Attempting to start the vehicle by bypassing the theft deterrent system or substituting parts without performing the password learn procedure may set a DTC P1631. If no password is received a DTC P1610, and P1631 may also be set. An intermittent may be caused by a poor connection, rubbed through wire insulation or a wire broken inside the insulation. Any circuitry, that is suspected as causing an intermittent complaint, should be thoroughly checked for the following items: Backed out terminals or improper mating. Broken locks. Improperly formed or damaged terminals. Poor terminal to wiring connections. Physical damage to the wiring harness. Corrosion. If the Body Control Module (BCM) is replaced, the PCM must be reflashed to allow the new password to be learned. The ignition must be turned off for at least 30 seconds then on for the PCM to learn the new BCM password. Test Description Number(s) below refer to the step number(s) on the Diagnostic Table: The Powertrain OBD System Check prompts the technician to complete some basic checks and store the freeze frame and failure records data on the scan tool if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference. A scan tool that cannot display PCM data indicates that a short exists on the serial data circuit. The replacement PCM must be reprogrammed and the crankshaft position system variation procedure must be performed. If the serial data loss occurred after a good theft password has been received, the PCM must be reprogrammed and the password learn and the crankshaft position variation learn procedures must be completed to allow the theft system to operate properly. Refer to PCM Replacement/Programming, CKP System Variation Learn Procedure and Password Learn Procedure for reprogramming procedures. If the serial data circuit to the Body Control Module (BCM) was not open, then the serial communication loss to the PCM lies within the BCM. Refer to Body Control Module portion of the service manual for Passlock diagnosis. If no malfunctions have been found at this point and no additional DTCs were set, refer to Diagnostic Aids for additional checks and information. __________________ -Mark You want more power? You need MP Racing! ------ Now drink with me deeply of the bourbon, scotch, and rye until such time as we are fighting drunk. Then we shall find, and beat the a*es of, the nonbelievers who ruined my feast. Last edited by lvemy3100; 06-21-2010 at 06:00 PM.*

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06-12-2010, 05:56 PM	#81
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	i keep getting a code for my IAT sensor, I think thats what it is... but it hasnt come up in awhile? when i wired the maf back up after cutting all wires to look at it. When I rewired them all the wires were faded and were hard to tell the colors apart so im not sure if i didnt hook iat up to wrong thing. shouldnt be the problem of the starting though...

06-13-2010, 08:40 AM	#83
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	would that be the car going into limp mode?i just dont understand what would cause it to go that rich while driving.

06-13-2010, 03:15 PM	#85
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	code 1626 keeps popping up... explains why it dont want to start and security light flashes and such... and why PCM could be going nuts. just dont know where to start with it.

06-13-2010, 07:31 PM	#87
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	yeah like i have loads of trouble trying to start my car after i drive it around. it will start up instantly after like 2nd crank, i could pull it out of my driveway, shut it off, and it wont start for half an hour, and fuel cut out like crazy... anyone have an idea? i was watching my gauges on DHP, i couldnt even get above 3 grand without breakage... injector pw goes to about 6, i dont get any KR, i reset trims, my LTFT was 3 % and stft went from like -5-5 but a/f was like fine?

06-14-2010, 10:46 AM	#88
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	Also for Fuel Pump installation. What do we do about the fuel filter with the prongs broken off? dropped tank but cant any of hoses off going to it.. they got weird fittings, one seems like it has a flare on the end and other one goes to fuel filter and i cant even get that off.

06-14-2010, 04:10 PM	#89
WidbyJ GAGT - Member AKA: Jesse Join Date: Jan 2009 Location: Wenatchee, WA Age: 60 Posts: 277 Vehicle: 1999 Malibu S/C	Plastic GM Fuel Filter tool at Autozone works very well at releasing the 'clip' connectors - buy em. Unless you want to replace the lines be careful working the remains out....

06-14-2010, 07:06 PM	#90
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	The only concerns i have now is that i have a vaccum leak somewhere, and i cannot freaking figure out where, i redid whole intercooler charge piping, everything, vaccum lines, made sure bov wasnt sticking open. But another concern is my spark advance, idles around 30 degrees, slow accel it goes to 11, if i wot it goes to 40

06-17-2010, 10:01 PM	#92
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	what is everyones spark advance that is boosted at idle? and during wot? i think i need to retune mine

06-19-2010, 12:31 PM	#93
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	So does anyone want a parts car for 5,000$? mods are well over what its worth.

06-21-2010, 01:44 PM	#95
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	not sure keep getting security code 1626, car breaks up horribly and when it shuts off fuel pump dont turn on until i turn security code off... checked fuses, no dice... whats this passlock thing i've been searching? would that honestly make the car run like dump? maybe fuel pump is failing or something I don't know. when I first had it out right after i got it back together it was running like a raped ape, now security code and breaks up.

06-21-2010, 03:52 PM	#96
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de

06-21-2010, 07:55 PM	#98
Mac0083 User account under probation AKA: Mac Join Date: Feb 2010 Location: Tampa Florida Age: 37 Posts: 349 Vehicle: 99 GT Coupe	thanks for the update, nice vid. but are those birds chirping in the background? or is it a squeeky belt?

06-22-2010, 07:30 AM	#99
zukiracer19 BoOsTiN' AKA: slograndam Join Date: Sep 2007 Location: State College, PA Posts: 2,700 Vehicle: ev0m0de	i just seen that 3/4 of way up on my cam shaft positioning sensor the 2 wires are rubbed through barley... gonna pull it off when i get back home here in a couple hours and put some heatshrink on it.