Rough Idle (misfire) what should I start with first

[Blake23]

When I start up my GN and it is at idle it seem to have a little stutter..
But It fine under boost and normal driving conditions
Where should I start?

 

[87-WE2]

Start by warming it up to operating temps and posting up your scan aster readings!!


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[josh young]

Give us some more information if you can. Did you recently replace anything on the car? What chip do you have. It could be a number of things, but start with a list of what you know it has. And as suggested, put up some
Scanmaster numbers if you have one. Good luck on a quick and cheap fix!

 

[Blake23]

Alright I have not purchased a Scan Master from Full Throtte Speed and Style
But I can tell you what I bought and have done it
Custom chip they made me for it so not actually sure
6262 Precision Turbo
Alky injection
160 thermostat
Fuel pump booster
Alternator booster
3:73 gears
Bigger rear tires size I don't know on the top of my head
New coil
Taylor wires
new plugs
After market Upper and lower control arms
3000 stall PVC converter
Adjustable Fuel regulator
Big Injecters
KN air filter
Volts gauge
Temp gauges
Boost gauge can't get to work LOL

I think I have another few little thing I can't think of

 

[1987GNASTROROOF]

What about the maf? Are you using the factory one? I would start there if that's the case.


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[Blake23]

What about the maf? Are you using the factory one? I would start there if that's the case.


Posted from the TurboBuick.Com mobile app

 

[Blake23]

What about the maf? Are you using the factory one? I would start there if that's the case.


Posted from the TurboBuick.Com mobile app

Mad as in Mass air flow sensor?
That's stock haven't touched that since I bought the car last summer

 

[1987GNASTROROOF]

Yes maf,if your running the stock 1 I would start there try to get a hold of a GOOD used 1.


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[Blake23]

Yes maf,if your running the stock 1 I would start there try to get a hold of a GOOD used 1.


Posted from the TurboBuick.Com mobile app

Should I try to buy a aftermarket maf from summit or something
Would that be better?

 

[1987GNASTROROOF]

No remanufactured suck,if your interested in a very good upgrade maf translator is 1 of the best ones.


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[TurboSmart]

No remanufactured suck,if your interested in a very good upgrade maf translator is 1 of the best ones.


Posted from the TurboBuick.Com mobile app

And this guy have some good ones!!