p0303

My 1997 P38 4.6L was throwing the "usual" collection of codes which I pulled up with my Nanocom: P0303, P0300, P1313. I first replaced the spark plugs, ignition wires (8mm) and the coil for cylinders 2 & 3, and kept getting the same codes after resetting the MIL. I finally diagnosed it to a...

2001 p38 4.6 Bosch with 84,000 miles: I am getting a p0303 misfire # 3 code. A couple days ago I also had a 4th gear incorrect ratio code. I did some searching and it looks like the 4th gear code generally points to be MAF, not the transmission. I know a MAF can also set a misfire. However...

Hi all, I have had these codes for awhile and can't figure out how to clear them. I replaced all spark plugs, spark plug wires and rebuilt heads. Even reset adaptation settings with no success. She is running bad. Also replaced cats and O2 sensors (all four). I have Range Rover HSE 1997...

Last week my 2003 Range Rover started missing while trailering my Porsche to the track. The SES began flashing and soon was fully illuminated with flashing while driving under load. It had a definite miss unless I kept the RPMs high. Eventually, it was barely running. I checked the codes and...

Misfire (P1300, P0304, P0303): be happy it didn't happen again or...? 2003 Range Rover, 100,800miles Yesterday morning it was 50F, I had been driving the RR for about 3 minutes and the engine temp gauge was at ~1/4. The vehicle was at ~40 mph and 2500rpm and I was accelerating slowly and all...

I am new to this forum and have spent over an hour scouring Google to try and find out what might be wrong. I have a 2002 Range Rover 4.6 HSE Bosch engine with 115k on it. About 1 month ago, while driving, check engine light started blinking and car running really rough. This happened out of...