Here is my problem, at high rpm, 5500 + and about 11 psi boost the engine starts missing and stumbling. If I go easy up (low boost) I can take it to 6500. If I keep the rpm low(4 to 5000) I can hit 12psi boost. Other than this the car runs OK, the mileage has dropped a little(3mpg).
Now the...
I have been reading the forms and I think I know the answer but I would like to confirm.
When you add a Walbro fuel pump why do you do a 12v mod and Why do you drill out the "J" tube?
Thanks
What he is experiencing is very close to what my problem is. At 5500 rpm the car starts missing and labors to go higher, no codes, not fco. I have a stock 7mgte, except for 3” exhaust and a boost controller set at 11.3 psi. About 4 weeks ago I added a Walbro 225l w/o a 12v mod everything...
I have checked FAQ and haven’t found the answer to my problem. I have an intermittent engine miss. Most of the time when it happens I am about 3000 rpm steady (freeway driving). It acts like you shut off the engine and turn it back on. It happen twice this morning after 10 to 15 minuets...
You are right, I knew what I needed to do. I put the old rotors back on, no vibration. I replaced the rotors, it is about 80% better, but still shakeing. I'll be going back this afternoon.
Thanks for your support.
Rick
I have a 88 Turbo. The other day I replaced the front brakes, rebuild the calipers, replaced the rotors and of course replaced the pads.
Now when I brake, I have a vibration, in the steering wheel, in the front end, I can feel it in my seat. I don't see any shimmy in the steering wheel...
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