2002 Toyota Tundra Misfiring

P0303 TOYOTA code tech notes The P0303 code means that the cylinder 3 is misfiring or is randomly misfiring.

2002 toyota tundra misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 3. I drove it 2 hours home no problem. A few years ago one of my OEM Denso packs went bad and was replaced by an aftermarket.

P0301 should be considered a cause for concern and can be a threat to the drivability your Tundra. It will often be accompanied by codes P0302-P0308. I borrowed a code reader and it said the 2nd cylinder was misfiring.

Start by checking for intake leaks intake gaskets are commonly caused by multi-cylinder misfiring. I suspect they failed because. Im posting a problem with hopes that someone can help.

Bought another ecm no change have fuel pressure power to injectors and new plugs plugs will fire done this by pulling out coil pack and ground plug. Still had misfire on cylinder 2. This makes diagnosing the problems simpler than P0300 which means that the cylinders are randomly misfiring.

I also checked the wire and I. All three rear cylinders 135 are misfiring. If the problem persists more tests.

Gave it a tune-up changed plugs etc. Commonly associated with Toyota codes. Professional Hand Model said.