Got me few Codes on the mobile... [Archive] - GrandAmGT.com Forum

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jaketuff
02-05-2007, 10:24 PM
Hmmm, I am wondering if the codes showing now indicate a bigger problem with the trans or are worth resolving themselves.... I will clean/swap MAF and TPS. These are the codes :

PO 101 = There is a discrepancy b/w actual MAF input and calculated MAF input from other sensors ie. TPS, Barometric Pressure Senso ECT.
PO 102 = PCM determined lower than expected MAF input for conditions.

PO 122 = PCM determined lower than expected input from TPS for conditions.

PO 131 = Voltage for 02 Sensor in Bank 1 is too low.
PO 138 = Voltage for 02 Sensor in Bank 1 is too high.

PO 171 = Cylinder #1 Bank Cylinder(s) running Lean, according to PCM.

PO URFKD = PCM determined your car is fooked.

What to do????

OUT

iceman
02-05-2007, 10:42 PM
I say just crash yours in to mine

jaketuff
02-05-2007, 11:04 PM
I say just crash yours in to mine

Any good cliffs near you???

I will play with the TPS/PCM this weekend and see what reaction there is... There ARE codes for a slipping tranny / bad solenoids etc correct?

What can be used to clean the MAF... Carb cleaner okay or too strong?

OUT

lone_wolf025
02-05-2007, 11:09 PM
Carb cleaner IMO would SEEM a bit strong but I will admit I have no idea. Maybe brake cleaner cuz it won't leave a residue?

Sprucegagt
02-05-2007, 11:24 PM
Hmmm, I am wondering if the codes showing now indicate a bigger problem with the trans or are worth resolving themselves.... I will clean/swap MAF and TPS. These are the codes :

PO 101 = There is a discrepancy b/w actual MAF input and calculated MAF input from other sensors ie. TPS, Barometric Pressure Senso ECT.
PO 102 = PCM determined lower than expected MAF input for conditions.

PO 122 = PCM determined lower than expected input from TPS for conditions.

PO 131 = Voltage for 02 Sensor in Bank 1 is too low.
PO 138 = Voltage for 02 Sensor in Bank 1 is too high.

PO 171 = Cylinder #1 Bank Cylinder(s) running Lean, according to PCM.

PO URFKD = PCM determined your car is fooked.

What to do????

OUT

Actually your code explainations are this:

P0101 - Mass Air Flow (MAF) Sensor Performance
P0102 - Mass Air Flow (MAF) Sensor Circuit Low Frequency
P0122 - Throttle Position (TP) Sensor Circuit Low Voltage
P0131 - Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1
P0138 - Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 2
P0171 - Fuel Trim System Lean Bank 1

As for fixing it. GM says to check your fuel pressure then check your MAF & TPS. Sounds like your running too lean and the PCM is not reading both the MAF & TPS properly. Also check for any burned or damage part of the harness containing the MAF, TPS and O2 wiring.

jaketuff
02-06-2007, 10:49 PM
Actually your code explainations are this:

P0101 - Mass Air Flow (MAF) Sensor Performance
P0102 - Mass Air Flow (MAF) Sensor Circuit Low Frequency
P0122 - Throttle Position (TP) Sensor Circuit Low Voltage
P0131 - Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1
P0138 - Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 2
P0171 - Fuel Trim System Lean Bank 1

As for fixing it. GM says to check your fuel pressure then check your MAF & TPS. Sounds like your running too lean and the PCM is not reading both the MAF & TPS properly. Also check for any burned or damage part of the harness containing the MAF, TPS and O2 wiring.

Hmmm, sounds like a good course of action to check all this stuff. I will if I have time! I just cleaned out my old SC descreened/oily MAF and swapped it in (runs stronger/ still slipping). Didn't feel like swapping the TPS, but will play with that this weekend maybe. It will be interesting to see if this many issues can be repaired (at under $50 that is).

Tuff

my2003tcgagt
05-16-2007, 10:16 PM
how did you end up fixing this, I am pulling up a PO102 code and I dont know how to fix it.