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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.
I'm just looking to get a smog check. I recently had my vehicle as planned non operational due to a check engine light. Recently I've been fixing the truck and have replaced the catalytic converters and the 02 sensors. I have also replaced the EGR valve, the MAP sensor, the IAT, and all spark plugs as well as the boots. Yes, I also replaced the ECM. Still catching the same 1128/1129 closed loop fueling not achieved bank 1 and bank 2 o2 sensors. Honestly the truck is running great with 302k/mi. It has the 4.7l JASPER swap per the dealer on a warranty. I open for suggestions, or even wiring diagrams because I'm about all out of ideas. I hooked up multiple scanners just to collect the data. I'm willing to share the specs. Thanks, God Bless!
Potentially, whats recommended? Ive swapped the out a few time with different ones. Auto zone, O'Reilly recommended. I oopen for options, have you had the same issue?
The PCM needs a few things to go into close loop, all of its sensor must be operating properly, engine needs to come up to temp, etc. Do you have a scanner that can read live data?
The PCM needs a few things to go into close loop, all of its sensor must be operating properly, engine needs to come up to temp, etc. Do you have a scanner that can read live data?
yes I have a live data read scanner. I took all the pictures I thought I would need too. Ran the truck for 10min and got pictures