04 DII was running rough , and would occasionally stumbled when first driving when the engine is cold.
Had these codes:
p1300 random misfire
p0305 cylinder 5 misfire
p0307cylinder 7 misfire
I also have live feed code reader connected to my phone. two O2 sensors reed between 0V and .4V. I believe they are supposed to be at .4V.
After replacing coil packs, plugs and wires (8mm magnacore and champion platinum plugs) I now have these codes:
p1884 low output MAF (after cranking it with the MAF unplugged on accident)
p1300 random misfire
p0303 cyl. 3 misfire
p0305 cyl. 5 misfire
p0307 cyl 7 misfire
All the wires are routed correctly. I checked multiple times before installing and compared to the coils that were in there (we had numbered them when we redid the heads about 30K miles ago). The engine seems to run smoothly and there's no noticeable stumbling.
I do have one little vacuum hose on the passenger side that connects to the SAI pump that has broken off. Would this small vacuum leak be enough to be causing these misfires? I also lost the gas cap last time I filled up.
The engine does seem to be running a bit better, but it will idle either really low at first (300 rpm) or really high (1500 rpm)
Any Help is seriously appreciated. I'm getting pretty tired of working on this truck without being able to enjoy it. I've probably spent 30-40 hours on it and have only driven it maybe 10 times in the past year. The rover is not been my DD since January, but we sold my wifes car so we need to use it for our daily commute (7 miles each way)
I pretty much always ran the truck on regular gas, and would seafoam it every once in a while. The truck sat for a year, and I filled it back up again with regular a few weeks ago. is it safe to drive my commute (7 miles each way).
Thanks,
Michael
Had these codes:
p1300 random misfire
p0305 cylinder 5 misfire
p0307cylinder 7 misfire
I also have live feed code reader connected to my phone. two O2 sensors reed between 0V and .4V. I believe they are supposed to be at .4V.
After replacing coil packs, plugs and wires (8mm magnacore and champion platinum plugs) I now have these codes:
p1884 low output MAF (after cranking it with the MAF unplugged on accident)
p1300 random misfire
p0303 cyl. 3 misfire
p0305 cyl. 5 misfire
p0307 cyl 7 misfire
All the wires are routed correctly. I checked multiple times before installing and compared to the coils that were in there (we had numbered them when we redid the heads about 30K miles ago). The engine seems to run smoothly and there's no noticeable stumbling.
I do have one little vacuum hose on the passenger side that connects to the SAI pump that has broken off. Would this small vacuum leak be enough to be causing these misfires? I also lost the gas cap last time I filled up.
The engine does seem to be running a bit better, but it will idle either really low at first (300 rpm) or really high (1500 rpm)
Any Help is seriously appreciated. I'm getting pretty tired of working on this truck without being able to enjoy it. I've probably spent 30-40 hours on it and have only driven it maybe 10 times in the past year. The rover is not been my DD since January, but we sold my wifes car so we need to use it for our daily commute (7 miles each way)
I pretty much always ran the truck on regular gas, and would seafoam it every once in a while. The truck sat for a year, and I filled it back up again with regular a few weeks ago. is it safe to drive my commute (7 miles each way).
Thanks,
Michael
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