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Engine running rough and rich

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Old 11-07-2017, 02:20 PM
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Engine running rough and rich

I have a 1986 TPI 305 camero motor that runs rich. No power on a hill climb or from a dead stop or low RPM's.When the engine come up to around 2,000RPM's it comes alive.
I took off the the new air cleaner and the motor had run better, more responsive.
Im running a Spectre cone style air cleaner with 3'' tubing for proper placement around the engine.
Does this TPI require an Additional air box for an air demanding TPI, or can my MAF sensor be adjusted?
Old 11-07-2017, 03:17 PM
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Car: 1988 Pontiac Firebird Formula
Engine: 5.7 TPI
Transmission: 700R4
Re: Engine running rough and rich

I would more suspect EGR was stuck open.....
Old 11-07-2017, 03:19 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Engine running rough and rich

Camaro ! , Any error codes ?
Have you checked fuel pressure drop ?
Old 11-07-2017, 04:47 PM
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Re: Engine running rough and rich

Thanks Guys,
I will Check both the EGR and for pressure drop at the fuel rail.
I will update later.
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