LT1-LT4 Modifications 1993-97 Gen II Small Block V8

car still runs BAD. 100miles/15gallons

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Old 08-23-2008 | 12:22 AM
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KadinZ's Avatar
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Default car still runs BAD. 100miles/15gallons

my car...still runs like a piece of ****, the idle is normal again, but for some reason the MAF code is pulling, and its brand ******* new...i dont get it.

when i first start it up, it will run at a high idle...1500, than if i get on it, it will go like normal..but if i stop at a stop light after driving it for a few seconds, it will start to run like **** and wont want to go over 2k-2500 rpm's, and this isnt good...i drove it lesss than 100 miles and it used about 15.2 gallons. so..any suggestions? i might give it a tune-up tomorrow and get a new MAF sensor(even tho its brand new from the dealership) i dont want to deal with those ******* anymore. no arcs n the wires or anything...absolutely nothing. but im getting 5 codes, and 3 i believe are o2 sensors, 1 MAF and w/e the other one is..

help? would the maf make my car run like this? i think the other sensors are pulling codes cuz of the car running so rich.

any suggestions would be nice ty.
Old 08-23-2008 | 12:30 AM
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Have you tried running it with the mass air flow sensor unplugged? This will put the car in a default mode and should run better if there is something wrong with the o2 sensors or the mass air flow sensor.

Also check the temperature sensor on the front of the motor, i think its on the water pump but cant remember.
Old 08-23-2008 | 12:54 AM
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i unplugged the MAF, i think it ran sorta better, but not much, it still bogged. i really didnt try that yet, the first time i tried to run it with it unplugged, it would start and turn off.

but the second time it started to run, idle at 1500 than it went down again and yeah..

the temp gauge is in there, nice and sturdy. i checked that too.

this really is kinda getting annoying.

maybe the guys at the dealership, the first time i brought my car in installed the o2 sensors under my car? maybe thats whats making my car run so bad? can a car run good with those in, with no exhaust?
Old 08-23-2008 | 01:38 AM
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Originally Posted by KadinZ
i unplugged the MAF, i think it ran sorta better, but not much, it still bogged. i really didnt try that yet, the first time i tried to run it with it unplugged, it would start and turn off.

but the second time it started to run, idle at 1500 than it went down again and yeah..

the temp gauge is in there, nice and sturdy. i checked that too.

this really is kinda getting annoying.

maybe the guys at the dealership, the first time i brought my car in installed the o2 sensors under my car? maybe thats whats making my car run so bad? can a car run good with those in, with no exhaust?
straight headers, no cat? or Straight headers with cat and no catback?

Running straight headers can burn out O2's after an extended period time.
Old 08-23-2008 | 05:21 PM
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http://i398.photobucket.com/albums/p...z/IMG_2851.jpg

http://i398.photobucket.com/albums/p...z/IMG_2858.jpg

http://i398.photobucket.com/albums/p...z/IMG_2868.jpg

http://i398.photobucket.com/albums/p...z/IMG_2869.jpg

http://i398.photobucket.com/albums/p...z/IMG_2871.jpg

http://i398.photobucket.com/albums/p...z/IMG_2839.jpg

thats what was in my cpu, a **** load of corrosion and water, when i turned the whole computer upside down, it dumped a bunch of corrosion filled water out.

when i cleaned my cpu out and dried it, it ran a little bit differently, and with different codes being pulled. i'm figuring this is my problem.
Old 08-23-2008 | 06:49 PM
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I said this in the other post but, I cant see the pictures for some reason...




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