Greetings, I am a new member, I signed up in 03 but never used this, this is great, I think I am posting this correctly, or is this the place to NOT get repair advice, I'll look around

 

Welcome back home to your Monte Carlo Family...

Where have you been ? (What's your excuse for being absent ? (LOL)

Hope we see you more often...

Click below to make a post on your repair help! Good Luck!
Monte Carlo Repair Help - Monte Carlo Forum - Monte Carlo Enthusiast Forums

 

ok I have just done a load of work on my 03 SS and I still have a very annoying issue, I've done a new motor, injectors, pressure regulator, fuel pump, plugs, plug wires, coils, ignition control mod, new maf sensor along with idle air control solenoid, throttle position sensor, air temp sensor, purge solenoid, evap canister solenoid, I've even put in a reprogrammed PCM for performance, and I STILL have a "coughing" issue under a light load, not idling and not while I'm getting on it, I am now at a loss, also when its cold it starts fine with no gas pedal given, but at operating temp, I start it, it stops/dies can take several tries and I usually have to throttle it to obtain idle, once driving it never stalls at lights or stops etc, only when I turn it off (as in errand running) then start it, I do have a K & N knock off air cleaner on it, is it possible too much air?!, no codes or anything, am I missing something, thanks for any advice.
Dave

 

Hi `Dave, you sure have done a lot of work on your Monte with your updates. Sorry, your tech issues are beyond on abilities & I hope one of our expert tech member's can help you with this issue...

OK, whose going to be first to help `Dave ?

Good Luck `Dave

 

What brand MAF did you use? Can you read the gr/sec. flow through the MAF? I assume you have no codes.

 

there is no brand name on it, it was an Ebay purchase, I have had to replace all of the critical sensors because the duralasts and other cheaper parts just seem to not work, I don't think the one I'm using is a AC Delco, if I remember that can be a pricey part, but I can get a AC Delco from Rockauto at a decent price, do you think that sensor has a problem, all Ive done is to unplug it while it was running and yes the motor stalled I know that's primitive I do have a meter, I know I'm getting 5v to it I haven't checked the out voltage

 

3800's are VERY particular about what brand of MAF's that are installed and ACDelco seems to be the only thing they like. Amazon has good prices on them also. However, the engine should not have stalled when you unplugged the MAF if there are no other problems. The MAF will tell the PCM to adjust the fuel trim up to 25% LT. Makes me wonder if you have a vacuum leak. Do you have a scan tool capable of reading fuel trim values &/or codes?

 

MAF or TBP I'd guess but I'm a newbie

 

Shawn, just because you're new doesn't mean you're not knowledgeable. All input is welcome here.