Boost Hesitation Problem?
#1
I have a 94 which has stock turbos. When I boost the first turbo seems to build pressure fine but when I hit the 4500 rpm range the transition as the second turbo hits hesitates real bad. The second turbo will eventually hit and then things are fine, holds boost. After I have boosted with both turbos a few times the problem seems to get better. I also thing the problem got a bit better after I replaced the plugs, still stock NGK's but after only a few runs it seems to be the same.
I have the following mods:
HP Fuel pump
Intake
Exhaust
HP Cat
Downpipe
Y-pipe
PMS
PFS Intercooler
Radiator
Underdrive pulleys
Any suggestions? Should I run colder plugs? I don't know.
I have the following mods:
HP Fuel pump
Intake
Exhaust
HP Cat
Downpipe
Y-pipe
PMS
PFS Intercooler
Radiator
Underdrive pulleys
Any suggestions? Should I run colder plugs? I don't know.
#4
hesitation is usually caused from lack of ignition or too much fuel. it could be a bad spark plug wire. you could be running way to rich in the top end also with the PMS. the PMS is hard to get running correctly unless you have PFS tune it on the their dyno
#7
For those who don't know
PFS 703-368-7959 Ask to talk to Peter directly. Your better off not wasting your time with that kid Jason who answers the phones anyway. He won't be there long rumor has it.
PFS 703-368-7959 Ask to talk to Peter directly. Your better off not wasting your time with that kid Jason who answers the phones anyway. He won't be there long rumor has it.
#8
Dude try this!
The O2 sensor has a connector on the backside of the manifold. Dissconnect it and go for a drive. It should smooth her out quite a bit if not all the way. Also I have some nice maps I can help you with.
-Rikki
The O2 sensor has a connector on the backside of the manifold. Dissconnect it and go for a drive. It should smooth her out quite a bit if not all the way. Also I have some nice maps I can help you with.
-Rikki