jeepster_259
NAXJA Forum User
- Location
- West Palm Beach, FL
I just wanted clarify my above post, if you have a 97, you need a 96-99 ecm.
If you have a 2001, you need a 2000+ ecm for the distributorless ignition.
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Are Rebuilt ECM / PCM / ECU Any Good?
- Thread starter JeepDawg
- Start date
I just wanted clarify my above post, if you have a 97, you need a 96-99 ecm.
If you have a 2001, you need a 2000+ ecm for the distributorless ignition.
renix is from 87-90.
JeepDawg
NAXJA Forum User
- Location
- New Jersey
Thanks! :>
90Blue_XJ
NAXJA Forum User
- Location
- In yer postz fixin yer spellinz.
And it stores NO codes and has no plug for a OBD scanner hook up. Trace down those O2 sensor wires. They are your problems.
- Location
- Hammertown, USA
www.car-part.com
put in your year, make, model, click search.
at the bottom of the page will be a list of page numbers, one page will have an * next to it, click on that page.
start calling vendors with the ECU you need until one is willing to do $60 shipped. Times are hard, someone will make the deal.
Done.
put in your year, make, model, click search.
at the bottom of the page will be a list of page numbers, one page will have an * next to it, click on that page.
start calling vendors with the ECU you need until one is willing to do $60 shipped. Times are hard, someone will make the deal.
Done.
maybe not a universal or standard obd scanner, but the renix does have 2 diagnostic ports that were used by a dealership scanner. a snap-on 2500 can also connect.
the 2 yellow diagnostic ports are located at the rear of the relay center. the ecu doesnt store codes, but "live" data can be observed from the scanner.
- Location
- Hammertown, USA
As 89XJ stated, I can plug my DRB in to my renix rig and have a pretty good idea whats wrong - simple error codes like "NO o2 GROUND SIGNAL"
JeepDawg
NAXJA Forum User
- Location
- New Jersey
I was inclined to think the same thing! Perhaps I'm missing something, but why would a failed driver in the ECM cause O2 sensor fuses to blow?
lawsoncl
NAXJA Forum User
- Location
- North Idaho
If you're blowing the O2 sensor fuse, its either wiring shorted to ground or a short inside the o2 sensor itself. The fuse just provides power to the heater circuit inside the O2 sensors. No connection to the signal sent to the ECM.
JeepDawg
NAXJA Forum User
- Location
- New Jersey
OK.....so here is the final verdict!!! (Drum Roll...)
The problem was fixed by replacing the ECM!!! I took it to another mechanic first....who spent two weeks trying to figure it out. He couldn't....and he didn't think it was the ECM either. But he couldn't figure it out.
So I finally found a used ECM (an exact replacement)....and voila...it worked!!!
And Jeepster_259 was absolutely correct - it DOES NOT need to be reflashed. it was plug and go....even passed NJ inspections with flying colors. So don't waste your time with those rebuilt ones.....as I was also told. You can find a used one that works just perfectly.
Just thought I'd share how the problem was finally solved. Thanks again everyone for all your help.
The problem was fixed by replacing the ECM!!! I took it to another mechanic first....who spent two weeks trying to figure it out. He couldn't....and he didn't think it was the ECM either. But he couldn't figure it out.
So I finally found a used ECM (an exact replacement)....and voila...it worked!!!
And Jeepster_259 was absolutely correct - it DOES NOT need to be reflashed. it was plug and go....even passed NJ inspections with flying colors. So don't waste your time with those rebuilt ones.....as I was also told. You can find a used one that works just perfectly.
Just thought I'd share how the problem was finally solved. Thanks again everyone for all your help.
