Jim Maltba

I took the smog pump and catalytic converter off my '89 Camaro that has a 305 engine in it with fuel injection. Research told me there would be no negative effects, but shortly after that my car exhaust became very rich, emitting fumes like a 1950 log truck. The car has 92,000 miles, has been babied all its life and never even ran hard. It has smoked a little for years upon startup because of slightly leaking valve stem seals, but otherwise been problem free. Does anyone have a clue why this is happening or if it is indeed caused by my modifications?

travis401

iTrader: (1)

Removing emissions equipment leads to worse emission out of the tail pipe. Your research was flawed.

Jim Maltba

Thanks for the reply Travis. I suspect you are correct, but I have had many cars without a smog pump or a catalytic converter that didn't do this. PLUS there are hundreds of people on just this one web site that have eliminated these items and not had the results I have.

xX89RSXx

iTrader: (1)

Did you remove the pipes going to the manifolds too? If so, did you plug the holes?

Jim Maltba

Thanks for your reply. Yes & I did plug the holes.