grod297

Any suggestions:

Just took the car out since October and as I was driving it started to jerk. I thought maybe the gas .. so I put in an octane booster and ran the the car almost to empty. It was fine under load above 3500 Rpm . but during acceleration any where at 2000-3300 rpm it bucks and jerks.

Plugs were new and wires when I put it in the Garage in october. Could it be the ignition coil pack?

1989 Mustang 331 built 24lbs injectors. Calibrated MAF to match

Any help would be appreciated

Thanks

G

AYEOH5.0

does the car have a tune?

mjr46

what about the cap and rotor??.....also lightly mist the wires with water and look for arcing, and make sure they are all pushed on tight and make sure none have burned through on the exhaust and make sure no rodent damage has done any in

grod297

Car does have a tune with a chip

I will check the cap and rotor

I swapped out the ignition coil ... that was not it .. the problem persist.

I will keep trying

Thanks

G

zebo87

clean your maf. what about fuel pressure.