I just bought this Camaro so far worst decision ever when I got it and drove it home the car was screaming would burn rubber no problem 2 days later it develops a real hard lag where it has no power when flooring it I have replaced spark plugs, wires, fuel filter, egr valve, pcv valve, the fuel pump went out on me as well so I have replaced it as well and I have checked all air hoses for leaks and compression on all cylinders is 150 I'm at a loss for words have even cleaned mass air flow sensor and throttle body as well any advice would be appreciated.

 

injectors?

 

I had a similar problem when i first bough my car and i still had the 2.8 When it was cold, it would hesitate bad under acceleration then backfire out the intake. Turned out it was a lean condition because the injectors were clogged. If you find out this is your issue, i have the low mileage replacement set i bought that i can sell you.

 

How did a 2.8 burn rubber?

 

I can get rubber in 2nd gear in mine. Just a chirp, but it's there.

in 1st gear I can get a nice healty screech

 

The same way anyone burns rubber revving engine and dropping clutch. I will definetly check the injectors next is there a easy way to clean them instead of replacing them

 

not that I know of. You can send them off to be cleaned, but usually it's better to just get new ones

 

Ok What about testing them how do i know if there clogged

 

That takes a flow test... and guess who does that? The same people that rebuild them or sell new ones

 

Fml haha

 

Does it run rough at idle? If it does, try adding a little propane through a vacuum hose. If it smooths out the its most likely dirty injectors.

 

Ok thanks i will try that

 

You have to drop it on the exhaust manifolds.


Did it run rough before you replaced the cap, wires and rotor?

 

Yes Thats Why I started replacing everything

 

Is there a certain hose I should be Doing it to

 

I've never heard of adding propane, but you put seafoam, SLOWLY, through the brake booster

 

And will that change the idle higher or lower to tell me if my injectors should be replaced

 

Seafoam cleans carbon. I have no idea what propane does.

 

Check your fuel pressure before condemning the injectors. Should be 37-47 PSI.

And pull the spark plugs. The color on the business ends of the plugs will tell how the engine is running.

Propane is basically added fuel. After all, people cook and heat their homes and campsites with it...

Also, yes, a 2.8 can burn rubber. And chirp second.

 

The spark plugs are black and i ran a bottle of sea foam thru the engine made it better but still lagging really hard im gonna get fuel tested tommorrow we will see

 

Also remove the vacuum line from the throttle body that is connected to the fuel pressure regulator with the fuel pump running. No fuel should come out. If it does, the pressure regulator is leaking and the diaphragm needs to be replaced.

 

Wasnt able to get fuel pressure tested because fuel injectors started acting up mechanic said I only had Power to 3 of them then when he replaced the fuse for them they started running rough so rough in fact car wouldnt idle anymore he said fuel injector wires were plugged in wrong could that be possible since it was running Fine before the lag issue started