93 Mustang Rough Idle

Knexo

Knexo

Forum Member
I installed a BBK Blach series fender cold air kit and BBK 70mm TB. Car runs strong, but when I push the clutch in to stop or turn it wants to stall. I have a rough idle also. I have a PRO M 76 maf calibrated to my injectors, cobra intake. I made sure the maf was positioned the same as when I took it off. TPS cam new with the TB, and I re used the IAC. Any inforamtion would be great.

Thanks,
Lenny
 
You could verify that the TPS is adjusted properly, Im not so sure they are right straight out of the box. Key on engine off you should read ~1 volt. .98-.99 is ideal. Also with the new intake tube, the filter may have drawn oil onto the MAF sensor causing an issue. You can clean that with some MAF cleaner, I wouldnt recommend brake clean. Start with the TPS. The green wire is the output.
 
SuperStang90 said:
You could verify that the TPS is adjusted properly, Im not so sure they are right straight out of the box. Key on engine off you should read ~1 volt. .98-.99 is ideal. Also with the new intake tube, the filter may have drawn oil onto the MAF sensor causing an issue. You can clean that with some MAF cleaner, I wouldnt recommend brake clean. Start with the TPS. The green wire is the output.
Click to expand...

X2 worked for me

Sent from my PG86100 using Tapatalk 2
 
Thanks guys! I'll try that tomorrow. Don't own a volt gauge, so I'll have to go and buy one. I'll let you know if it doesn't work, because I'll be asking what else to try.

Lenny
 
Knexo said:
Thanks guys! I'll try that tomorrow. Don't own a volt gauge, so I'll have to go and buy one. I'll let you know if it doesn't work, because I'll be asking what else to try.

Lenny
Click to expand...

You can get a cheapie at harbor freight. Just make sure its digital
 
I ended up adjusting the throttle set screw 3/4 of a turn and rotating the MAF an 1/8 turn. Cars idling at 950-1000 rpm perfectly now. Thanks to all the guys for your help.

Lenny
 
Thanks! I'll try adjusting it some more tonight then to get it closer to 800. Maybe if I back off the set screw and turn the maf a little further, I can get it to run at that RPM.
 
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