car falls on its face
09-18-2008, 08:23 PM
#1
car falls on its face I just got done installing my new gm opti and redoing my valves since they were too tight. I took the car out and when i give it gas it sputters alot and i dont get the power i should and when i push it to the floors it barely moves. The check engine light is on and flickers on and off but I haven't had a chance to see what the codes are yet. Does anyone have an idea of what it could be?
09-20-2008, 03:52 PM
#7
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09-25-2008, 08:06 PM
#8
I checked the wires, their all correct, I forgot to mention that the car idles great and fires up almost as soon as i turn the key. I changed the ICM no difference at all, I upped my fuel pressure since it was turned down before but, all it did was give me a better idle. While driving the car does pop and backfire a little.
09-29-2008, 08:15 PM
#9
ok well I let the car sit for a few days after upping the fuel pressure since it was turned down, i finally put the exhaust pipes on, and i took the car out again, it started to do the same thing when i got on it so i slowly brought the rpms up past 3k. I went down the street turned around and gave it 3/4 throttle. Next thing I know the car takes off out of nowhere and went past 3k. I did a few more laps up and down the street while getting on it and everytime it took off. I'm so confused now lol
. I'm starting to feel I built the new "christine"
. I'm starting to feel I built the new "christine"
09-29-2008, 08:30 PM
#10
ok well I let the car sit for a few days after upping the fuel pressure since it was turned down, i finally put the exhaust pipes on, and i took the car out again, it started to do the same thing when i got on it so i slowly brought the rpms up past 3k. I went down the street turned around and gave it 3/4 throttle. Next thing I know the car takes off out of nowhere and went past 3k. I did a few more laps up and down the street while getting on it and everytime it took off. I'm so confused now lol. I'm starting to feel I built the new "christine"
. I'm starting to feel I built the new "christine"
09-30-2008, 02:15 PM
#13
ok well I let the car sit for a few days after upping the fuel pressure since it was turned down, i finally put the exhaust pipes on, and i took the car out again, it started to do the same thing when i got on it so i slowly brought the rpms up past 3k. I went down the street turned around and gave it 3/4 throttle. Next thing I know the car takes off out of nowhere and went past 3k. I did a few more laps up and down the street while getting on it and everytime it took off. I'm so confused now lol. I'm starting to feel I built the new "christine"
. I'm starting to feel I built the new "christine"
10-04-2008, 11:13 PM
#16
It still has a studder at lower rpm and wont go about 5500, but it does run even better since I unplugged the MAF. But I will say for being my first 4th gen I'm extremely happy with the handling. Due to some kids in a 350Z(even though i too am 17) they tried to screw around and because of them my car ended up over a lane and the *** end sliding into the shoulder at 60mph, I some how regained control immediatly. I'm leaning on good weight distribution since I have bald tires.
10-04-2008, 11:57 PM
#17
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I agree, the only time my ses light ever blinked is when i hac a bad miss... If your car is having the same issue, you should notice a fair amount of vibration to acompany the lack of power. From the brief description, that is my best guess.
