Replaced ignition module, now hissing from air intake, and egr holding vac. ???
08-29-2007, 07:49 PM
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Replaced ignition module, now hissing from air intake, and egr holding vac. ???
90 speed density. I noticed a very abnormal hiss coming from the air intake. sounds like a super loud air leak. I'm thinking my EGR is messed up, since my scan tool reports 100% duty at all times at idle.
Also, I turned my vehicle off, and the brake booster line still had LOTS of vac on it when I went to remove it 10 minutes later! How is this possible? Its hooked into the rear driver side intake manifold port!
ahhhhhhhhhhh! HELP!
Also, I turned my vehicle off, and the brake booster line still had LOTS of vac on it when I went to remove it 10 minutes later! How is this possible? Its hooked into the rear driver side intake manifold port!
ahhhhhhhhhhh! HELP!
08-29-2007, 07:51 PM
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Car: 91z,97ws6,98fb,87&90jeep,05 yz250
Engine: 5.0tpi,5.7LT4,5.7LS1,4.2I6,5.7TPI,1
Transmission: t5,4l60e,
Axle/Gears: 3.42
Re: Replaced ignition module, now hissing from air intake, and egr holding vac. ???
brake booster has a check valve
08-29-2007, 09:16 PM
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Re: Replaced ignition module, now hissing from air intake, and egr holding vac. ???
lol, thanks. I just figured that out! I ripped off the intake to find that the EGR is capped, and the solenoid is gone! I guess I will just take out the EGR valve, and send my prom back to PFL and have them reprogram it not to include an EGR valve 
.
The previous owner was a hack, and I'm fixing all his f-ups. Wonder if this is why its always ran rich?
. The previous owner was a hack, and I'm fixing all his f-ups. Wonder if this is why its always ran rich?
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