Help Idle Wild
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Joined: Nov 2006
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Help Idle Wild
cant get it to idle or time right since I put a muffuler on. when I got it there was no muffuler on it , other than it being a little load till it warmed up it idled and ran great . the moment I put the muffler on the idle climb and stayed at 3000rpm when try to set the timing its off by 10deg.I cant set the idle because its efi.
ENGINE IS A 302 EFI
TRUCK IS A F150
YEAR IS 1986
ENGINE IS A 302 EFI
TRUCK IS A F150
YEAR IS 1986
Thread Starter
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New User
Joined: Nov 2006
Posts: 7
Likes: 0
yes . found out today that the problem may be to much back pressure cause by the cat. conv. being partly plugged so when the I put the muffler on it cause to much back pressure so the sensor was trying to adjust and could not.
