im about to give up
01-19-2008, 09:15 PM
#1
Teching In
Thread Starter
Join Date: May 2004
Location: Moorpark,CA
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
im about to give up This has happened twice to me now. When i pull up to a stop light the rpms get very low around 300 and the engine stumbles and shakes the car like it is about to die and then recovers as though nothing happened. Also I noticed when i accelerate from a stop that it hesitates a little to start then is fine. i have no other problems. I got an auto tap and had the lean codes on both banks. i have installed the slp cold air kit, slp maf, slp throttle body, slp thermostat, slp smooth air bellow, msd wires, bosch platinum plugs, slp loudmouth exhaust, 3'' y pipe, edelbrock shorty headers w/jet hot coating and an arp underdrive pulley. i installed all of those mods about 30k miles ago and never had a problem. the car currently has 112,000 miles on it. i am also trying to sell it so i dont want to spend alot of money. any ideas?
01-20-2008, 10:15 AM
#4
In addition to your IAC, try cleaning your MAF sensor. (You'll need special MAF cleaner or non-residue electrical contact cleaner.)
If your MAF is fouled, it won't sense all of the air coming in to the engine and will trigger the ECM to lean out your mixture.
If your MAF is fouled, it won't sense all of the air coming in to the engine and will trigger the ECM to lean out your mixture.
01-20-2008, 11:30 AM
#6
TECH Apprentice
iTrader: (4)
Join Date: Apr 2007
Location: KC
Posts: 320
Likes: 0
Received 0 Likes
on
0 Posts
Check the fuel pressure. My fuel pump went bad and it did the exact same thing. People kept telling me it could not be the fuel pump because they just go out completely. So I went and got a fuel pressure gauge and sure enought I was running like 25-30 psi fuel pressure when its supposed to be 58-60 psi.
