p1300, p0306, p0302, p0135, p0155, p0154, p0300, p0308, p0306, p0302, p0130, could a bad coil be causing all these. Please help.

 

Coil works plugs 1-4-6-7 and other one does 2-3-5-8. So it would seem more than one coil, if that is problem. Observe the running beast in the dark of night, looking for small arcs of light around plug boots, wires, etc. Eat leftover Halloween candy while working, try not to think of Dracula lurking nearby waiting to suck the blood out of your wallet... err I mean the Dealer.

 

Before you do anything, clean and tighten all your cables and grounds, then go have your charging system tested, should be between 13.6 and 14.4 volts. If all is good, then clear the codes and go drive it hard so it will set new, current codes, get back to us with them along with mileage, octane and tune up history along with what wires are your running.

 

Now im pilling my hair out, and I didnt have much left as it is. Okay I tested the charging system it maintains a average 13.9 volts and under a losd the lowest it drop was to 13.5-13.6 volts. Milage is 233000kms tune up done a month ago with Bosch 2 Plugs and Magicore wires and as u know I just replaced the 2 Front O2's with Bosch ones and thats when everything started. Lets see 3 weeks ago new Front cover gasket and seal and Oil pan Gasket along with New Timing chain and water pump Gasket and spray cleaned the MAF with proper cleaner. I always use 91 Octane gas. Is there any chance a air leak cold cause all these codes. I'm stumped. when I drive it along distance it runs great and no codes come up but as soon as the engine comes to an Idle It runs rough than all these codes pop up again.

 

Did you clean the 02 connections, do you have a real time scanner so you can get a better look at the 02's?

 

Yes I believe I figured it out. Man I can't belive how many retarted codes will pop up due to one little issue. I decided to go back and check the connectors for the 3rd time, this time i brought a volt meter with me. I noticed that all the misfires seem to be on one side of the engine (the passenger side engine) so I figued I would start with the O2 on that side. The O2's are brand new, but I thought I would test them anyways and all was good they were giving a low resistance reading hich is good so I know It was okay. Next I testes the connector on the harness going towards the engine and noticed I wasn't getting a 12volt reading so I tested the wire before the connector and there was a 12 volt reading so connector is shot. So in the end I just bypass the connector and all seams to be okay. No more rough idle and no CEL for almost a day now, will keep everyone informed if it comes back on. Fingers crossed it doesnt. lol. Oh ya I checked the other O2 connector and all was good. Again I can belive one little connector tripped all these code. "WEIRD" I guess I can glue my hair back on my head that I ripped out from this Issue. Thanks everyone for the help I love my rover and this site.