6th Gen ('00-'05): 03 SS can't idle

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#11

06-10-2020, 03:30 PM

Freshoutdabox

Thread Starter

Join Date: Mar 2019

Location: Brevard County, Florida

Posts: 8

Quote:

Originally Posted by bumpin96monte

I take it you did as we noted above, unplugged the MAF sensor and then it ran fine to prove the MAF was bad? If so, unplug the MAF again, and take the new one back for an exchange. If you bought a cheap MAF, it could be bad out of the box. If a new quality MAF does the same, then the issue could be elsewhere in the MAF circuit (wiring, pcm).

As long as it runs fine on MAP only with the MAF unplugged, that pretty much rules out any other issues.

I'd also not bother with continuing to unplug the battery, that doesnt fix anything. All it does is reset codes and fuel trims, it won't repair any actual issues.

Unplugging the MAF before made it able to "run" but you could smell that it was running way to rich, and it still wasnt able to idle, i had to keep the throttle at 4 percent to keep it from dying.

after plugging in the new MAF (which im returning), the car will not successfully start no matter what i do. there'll be some pops but not enough to get it running. and this is with both with the MAF unplugged and plugged in. i fear that the new MAF did something to the PCM like shorting out a 12v rail or just ruined the PCM or something, but if that happened, i doubt the car would beable to turn over at all.

the wiring harness is one of the first things i checked when i noticed the problem.

#12

06-10-2020, 04:20 PM

ChibiBlackSheep

Monte Of The Month -- August 2014

Join Date: Sep 2008

Location: Southeast PA

Posts: 25,136

Quote:

Originally Posted by nitehawkjcb

Check fuel pressure and for vacuum leaks

Have you checked your Fuel Pressure at the rail yet?

#13

06-10-2020, 08:59 PM

Freshoutdabox

Thread Starter

Join Date: Mar 2019

Location: Brevard County, Florida

Posts: 8

Quote:

Originally Posted by ChibiBlackSheep

Have you checked your Fuel Pressure at the rail yet?

idk how to do that. i dont have a job currently so im trying to do this a cheaply as i can without it being duct taped together

edit: if a fuel pressure and/or vacuum gauge can be had for like $20, then i could get it

edit2: ive found one for $24 nvm

Last edited by Freshoutdabox; 06-10-2020 at 09:09 PM. Reason: more info