Engine trouble!

[Ryan23]

I have an 87 GN, and recently it has started to skip and hesitate. Its pretty smooth the first couple miles, but then get progressively worse. We have replaced the coil pack, plugs and the spark plug wires, and put octane booster in, and still runs very poorly. We have 2 Kenny Bell chips, and never had any problems with them, and we tried rotating them. We rebooted the computer and check for codes and nothing has come up. If any one has any info on this, I would greatly appreciate it. Thanks

 

[1987GNASTROROOF]

Original maf?


Posted from the TurboBuick.Com mobile app

 

[Ryan23]

Yes that is original.

 

[1987GNASTROROOF]

That for me would be suspect #1.


Posted from the TurboBuick.Com mobile app

 

[hotairgnx548]

Ryan call Eric at turbo tweek and get him to make you a chip he's light years ahead of the outdated kenny bell chip. John

 

[Ryan23]

Thanks John for the info, i will def contact him. Could there be anything else besides the maf that could be wrong? And is it possible to buy a stock chip somewhere?

 

[we4Mateo]

Crank sensor can cause issues like that too, but look at your MAF first. Mine did the same thing and still passed the screwdriver tapping test. Heat made it act up; that's why your first couple of miles are ok.

 

[we4Mateo]

BTW, get a translator/maf combo and be done or while upgrading chips, go SD2/powerlogger and ditch the maf. You could even gut your stock sensor and run it so it looked stock still.

 

[Mr.Spool]

vortexbuick has plenty of info for you to study,check it out i do agree on the maf and love that translator/maf upgrade but changing parts can get old even though its sometimes necessary.

 

[earlbrown]

Upgrading to a modern MAF with a translator is a great upgrade. Even if the stock MAF is still 'good'. Same thing with a modern chip and new injectors.

 

[TLIMITED]

I had a bad cam sensor run like yours years ago,spit sputter but would smooth out under boost but I would check MAF first as they are alot more common to act up like your car is.