You are currently viewing our forum as a guest, which gives you limited access
to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX8Club.com today!
There is no such code as p0351. Its not listed in the manual at all. Did the U code come back after clearing? U code could have been generated when trying to read codes with scan tool.
Thank you for your reply
You're right! P0351 does not appear in the manual. And, this is what surprised me as well since i checked it again and again myself.
The speculation here is that since coil pack 1 is fine, maybe its connector or harness or some other electrical cable might be faulty resulting in a comm. bus error and ignition pack 1 not responding properly.
This is pure speculation. I might be totally off!!
you are totally off . the issue is directly related to the communication error. you are using a scanner to pull the codes that is not fully compatible with the rx-8s pcm. its giving a false code and communication error because it is not compatible. find one that is.
swap the coils leading to trailing and see if you have any change in drivabiltiy or idle etc. next time before changingthe coil check the harness for shorts and the plug wires
Further to this, the codes P0351 through to P0354 refer to issues with the ignition coils A-D correspondingly (I believe A is the coil closer to the front of the car). Front to back the coils go to L1, T1 (front rotor), L2, T2 (rear rotor).
FYI, if you replace the Mazda coils with non-OE such as BHR on a JDM car, these DTCs will typically show up as a warning on the first drive cycle, and will change from warning to error on the 2nd drive cycle, triggering a CEL.
Recently I experienced erratic idle on 2nd drive cycle after BHR coils were installed. This was the first time the engine was started with coil errors (previously were warnings only). After returning to stock coils and clearing the coil errors the erratic idle disappeared. Possibly indicates some type of limp mode triggered at engine startup if coil errors are present.