Can't find the problem... Need Help. [Archive] - Forum


View Full Version : Can't find the problem... Need Help.

07-16-2004, 01:35 PM
Ok, I've tried and tried again to research this without any luck.

I'll start by the order of things I did.
I took out my CAI and DHP. I replaced these with my Stock Ramair and Stock PCM. This is where my troubles began.

At this point I had a rough idle. I started to drive the car and it would "bog down" when I would start to accelerate. Meaning I would apply steady gas and the car's rpm range would go up but the car wouldn't go, then it would catch and accelerate. This happened at every shift point.

So, I decided to take the stock setup back out and replace it with the dhp and CAI. Still doing the same thing even after multiple relearns. I notice when i'm going from 20mph-30mph my rpms go up but no acceleration, plus I hear my CAI trying to suck in More air and bogging down. At times I can't go past 40mph. I took it up to the dealership and they told me that it was throwing a code p0300, multiple misfires in all cylinders. I've checked wires and front plugs. I cleaned the TB and checked all connectors. I did find that the back hose coming from the back heads was popped out. *this is the one that plugs into the CAI* I popped it back in, but its still having the same problems. I'm running 93 octane and I have fuel injector cleaner in right now.

I need Help seriously!! I'm stuck without a ride.

07-16-2004, 04:39 PM
I'll see if I can take a vid of the problems.

07-16-2004, 06:53 PM
You guys do this again and again and again! A modern day PCM takes up to 200 miles to properly "tune" itself to the engine and driving conditions. Swapping stuff in and out within a period of a few days WILL mess things up! If you want to take stuff out, take it out BUT KEEP IT OUT!

07-16-2004, 07:39 PM
Craig, not helping... When I can't even go down the street, I'm sure the PCM isn't still learning. I was told that it should learn its shift points within the fist few seconds of being on. It tweaks these settings over time to be at an optimum level.

07-16-2004, 07:50 PM
I am having a problem! : my car seems to slip when it comes to a full stop, when I pin the gas the cars wheels don't break loose and squeal , the way it use to. I tried sitting at idle and the car tends to run rough in NO 2 - 3 cylinders it almost stalled once and I have no alternator or battery problems. I am debating wether it is a tranny prob (mechanical) or some type of mis fire in the ignition system. If anyone knows what could be wrong I really could use the help cause it is worrying me a bit.

07-17-2004, 02:08 AM
hmmm... After using the nifty SEARCH BUTTON, I do believe my Catalytic Converter is bad. I seem to recall it rattling really bad up till this week. Now it is silent. I will get it changed later on today and update.