Engine misfire(1986 2.8l TPI)

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Jun 30, 2022 | 07:46 AM

Mspangler

Thread Starter

Junior Member

Joined: Dec 2021

Posts: 69

Likes: 3

Car: 1991 Camaro RS

Engine: 5.7 Lt-01

Transmission: T56

Axle/Gears: 3:28

Engine misfire(1986 2.8l TPI)

Someone please help, having trouble with my daily. So my engine is missing especially at high rpms, it has new plugs wires and connector cap. I also noticed that my o2 sensor doesn't have a wire hooking to it or anything, could that be the issue?

Jun 30, 2022 | 08:53 AM

ironwill

Supreme Member

Joined: Jan 2008

Posts: 1,331

Likes: 565

Car: 1986 IROC Z

Engine: 5.0 TPI

Transmission: 700R4

Axle/Gears: 3.23 Posi

Re: Engine misfire(1986 2.8l TPI)

Quote:

Originally Posted by Mspangler

I also noticed that my o2 sensor doesn't have a wire hooking to it or anything, could that be the issue?

It's possible.

Fix all the obvious stuff first before you begin troubleshooting.

Last edited by ironwill; Jun 30, 2022 at 10:27 PM.

Jun 30, 2022 | 09:27 PM

tom3

Supreme Member

Joined: Jan 2004

Posts: 2,322

Likes: 100

From: So. Ohio

Car: 88 Camaro

Engine: L98 350

Transmission: 700r4

Re: Engine misfire(1986 2.8l TPI)

Is that a high mileage 2.8? I'm thinking valve springs might be weak. Could be in the fuel delivery too, filter, pump, dirty injectors but the high rpm deal is not so common with those.