1999 Toyota Camry Q&A
1999 Toyota Camry Question: another p0303 question.
So i get a p0303 when i start my car, and when the rmp's are around 1500-2400 while driving. i have replaced plugs, wires, #3 fuel injector, all with OE parts. i have completly cleaned the EGR, EGR manifold, and the VSV switch and all vaccum lines. and tested the secondary resistance of the coil packs for cold and hot(their with in specs). iv also tested MAF sensor, iacv, coolant temp sensor, and everyother sensor associated with the P0303 code. after all this the "chug-chug" at stops while in drive or reverse has almost been completely fixed, i still get the code. what should i check next? - TheStrange
Did you get the code cleared? If not, get it cleared and try again. Sounds like you checked all the right things but you didn't say you cleared the code. Next thing I might do is, using an oscilloscope, check the waveforms at the coils and injectors. That may tell you something. You may also want to change fuel brands and maybe the fuel filter. Just a guess but you've checked a lot. Also look for corrosion or water in the injector and coil connectors. - Superbob