Stalling problem after put on mods...

[craigwhite89gt]

After i put on my Trick flow street intake & 24lb injectors and mass air sensor, sometimes lets say im coming to a stop and im at 3,000rpm and i push in the clutch the car acts like its about to stall (rpms go down about all the way and my AMP light comes on for a quick second) and pop back up to idle, or sometimes the car stalls.

Info on my car-166,000 miles 89 GT
Mac Intake
BBK -Headers -- 70MM TB-- Xpipe Flows
Ford racing clutch
And newest added parts are the Trickflow intake,Injectors,Massair sensor, and A/C eliminator

Any input would help

 

[PhLoBuS]

Maybe a more powerful alternator? I am not sure though see what other people say

 

[craigwhite89gt]

TTT

 

[crunchie12268]

That 70mm t/b is way too big for your combo, but anyways, maybe the computer just hasn't had time to adjust to your setup. Maybe when you disassembled everything you forgot to plug in a vacuum or some harness. Is the IAC sticky or the EGR going to crap? I would run the codes and see if you get anything. But first I would drive it for a little while and see if that fixes anything. And the meter is calibrated for the injectors right?

also, do you need a regulator or a larger fuel pump to accomidate those larger injectors? I am not for sure but maybe someone can help you with that.

 

[2002BLGT]

adjust the idle a little higher and see what happens ....

 

[genericstang]

disconnect the neg terminal for like a min, then reconnect. sometimes the computer just needs to be reset.

 

[HISSIN50]

if you dont find anything else obvious (i would clean the IAC and renew its gasket first), here would be my take:

reset the KAM. but then dont reset it again and try to be in a controlled environment (not in traffic or danger). let the car try to stall and allow it to try to catch itself (or die trying). the EEC will have a better chance of adapting and correcting this situation (i tend to try to 'catch' the idle before it drops too much - the puter will not learn if one does this). this habit is hard to break; i grew up with carbs that were not very 'smart'.
the computer should be able to see what is happening and adapt to it.

also, are you rolling when this happens? the puter should sense you are rolling and keep the revs higher (~1500 rpm) to prevent just what you describe.

good luck.

 

[rubberneck]

check your grounds for the ecc, it should bolt to the back of the head, make sure your engine block has a ground strap going to the chassis.