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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
That may be a contributor...... But, the only way to know, is to put a genuine mopar sensor in there........ and they tend to be pricey. You can get the part number from Chrysler, then google search on that number. You can generally find them cheaper from other vendors.
That may be a contributor...... But, the only way to know, is to put a genuine mopar sensor in there........ and they tend to be pricey.
Yeah, no aftermarkets. Also need to reset the computer after replacing it. Pull battery cables, short them and turn the key to crank... then reconnect.
On this last tank before I changed the plugs I put a bottle of Lucas injector cleaner in it. I changed them Friday and then took it for a drive. It ran great, better than it had in a while. Went to go this morning and it started having a multiple cylinder misfire again. I put in the copper champion 570 at the right gap. It’s not throwing any other codes.
Hmm... morning tends to bring condensation. I'm wondering if something it getting damp and arcing to ground. Sometimes you can see the arcing if its really dark. The spark plug wires that cross to the opposite cylinder might be the problem, how old are they?
The wires are as old as the last plugs. I put plugs and a crank sensor in it and the problem went away for about a week and a half. Now it’s back… 😡. I’m going to buy wires and an air filter however I don’t think that’ll solve my issues. It is very very intermittent but when it happens it misses until i turn it off.
[QUOTE=Colbymason1;3544224]The wires are as old as the last plugs. I put plugs and a crank sensor in it and the problem went away for about a week and a half. Now it’s back… 😡. I’m going to buy wires and an air filter however I don’t think that’ll solve my issues. It is very very intermittent but when it happens it misses until i turn it off.[/QUOT
That is frustrating for sure. Assuming the weather was about the same... If it went well for a solid week after new crank sensor and plugs, I think I'd upgrade to the mopar OEM crank sensor as HeyYou suggests. The spark plug wires would be consist when power is cycled, and that isn't what you are seeing. I'd also pull a plug or two and make sure the new plugs still look relatively new.
I don't remember if the torque app and bluetooth obd2 setup will report a crank position sensor output in a chart over time.... but if it does, then you would likely see erratic behavior if that was the source when its misfiring. That would prove the part is junk and you'd be more confident about spending dealer price on OEM. Bluetooth obd2 adapter is only $15 from Amazon, and the app is like $5 if you need to buy it for the features you need.
So
here’s what I found out. I can’t see crank position on it but it does show degrees of timing for #1. Not sure why one says 19 degrees and the other says -64. It did have a misfire on my way home and after about 30 seconds it was running fine. This is what I saw when I got home and hooked up the OBDII
Look at the bank 1 short fuel trim vs bank 2... bank 1 is leaning out big time, maybe due to a faulty o2 sensor on that bank? I'd swap the two front o2 sensors and see if the code fault follows - if it does, replace that o2 sensor with a NTK (mopars are picky about sensor brands).
I’ll have to give that a try. Maybe some bad wiring right there causing it to be intermittent… I have checked fuel pressure on the right rail and it was good but I don’t ever get a chance to when it is missing.
