My 2002 Grand Prix GT has been stalling at lights recently, it also stutters on acceleration. Below is what I have done to fix it
New fuel filter, new spark plugs, new spark plug wires, cleaned MAF sensor, cleaned TB, new TPS, checked all ignition coils and replaced one, replaced air filter.
There is also exhaust leaking from the manifold which I don't think is related to this problem but I have ordered a replacement to fix it nonetheless. Anyone know what it may be? I'm kind of lost. Maybe a clogged fuel injector or bad O2 sensor? No error codes are being given.
