Car has been acting very randomly with the same problem going in and out with increased frequencies.
Noticed first that I would be driving around and suddenly the car would bog down. Sometimes at stops, sometimes while driving, then would kick in all the sudden and be fine.
My first thought was.1. Spark 2. Fuel 3. Air
I first went the cheap root and replaced the spark plugs and air filter, they needed to be changed and new it should be done anyway. Ran better for about 3 days then back to the same crap.
I next thought fuel since it was stuttering in and out and very apparent under acceleration. Since this car didn't have a fuel pressure fitting on the rail (blarg), and I had spent many days trying to find a fitting, I gave up and replaced the fuel filter first, not better. Got pissed, replaced the fuel pump. Ran better, but didn't solve the problem.
I rechecked the spark on the car and it was ok, went ahead and re-gaped the spark plugs, replaced the distributor cap and rotor and it seemed to idle better, especially after adjusting the throttle cables, but still was crap under acceleration and bumpy idle.
I was then thinking catalytic converter. Yes this is ghetto, but I drilled 4 holes in the converter to see if that would help but it really didn't. Plugged the holes with some liquid steel and back to the drawing board. Yes I plan on replacing it soon. Granted I can get it running right.
I was fed up. Went to the junk yard and found a fuel pressure relay and tried switching it out. No better.
Fed up more, I took it into the dealership to have diagnostics ran on it. They told me it was fuel injector #2 and wanted $350 to replace it.
I got online, ordered genuine fuel injectors and went ahead and replaced all 4 of them this weekend. After adjusting the throttle cable back down to normal, the car was running great like it was b4.
I drove the car somewhat aggressively to a friends house, stopped the car once after driving 20 miles, drove another 10 miles after that and all was good. After the car sat for about 2 hours, came out, started the car, and it was idling rough again and doing some weird crap again. Only this time it would actually accelerate fine when pedal depressed pretty far down but still not running right.
I'm not sure what to do now, the only thing left on the fuel side is the fuel pressure regulator, which is like $140 from the dealer, and like $95 online. I'm not sure what to do next. It almost makes me feel like the actual ECU is bad or something. If it was anything else major, I would imagine that the codes ran at the factory would have told them something else they would have mentioned to me, like O2 sensor, etc etc.
I imagine after it setting to 2 hours in cold rainy weather it had plenty of time to cool down if it was heat problem, and if was just cold, that it would have gone away the 30 miles I had to drive home. HELP!
have the same problem?
Monday, October 22nd, 2007 AT 1:28 AM