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OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs. |
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#1
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ECU Breakout Test Unit?
For the Renix injected motors like my 1990 XJ has, does someone have a list of pin outs, and values for ohms or voltage for all the sensors?
On my old VW injected Van someone made a breakout box with digital meter that is spliced into the ecu harness for real time as you drive monitoring of the ecu sensors, O2 sensor, ecu voltage, injector pulse, temp. sensors, etc... I made a break out connector for an old injected Porsche, DJetronic system, and simply connect my volt ohm meter to it for testing while in my driveway. I would like a simular diagnostic thing for my Jeep XJ. where is a good location to get the sensor data? Thanks in advance, I will keep you posted of results once I get this figured out. Maybe someone has done this before? |
#2
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Re: ECU Breakout Test Unit?
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Have you seen the Renix Engine Monitor? https://www.youtube.com/watch?v=OFOATa6HGx4 https://nickintimedesign.com/ |
#3
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Re: ECU Breakout Test Unit?
If youre anywhere near 92563, we could link up and see qhat your jeep is doin with my mt2500.
Lemme know. |
#4
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Re: ECU Breakout Test Unit?
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#5
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Re: ECU Breakout Test Unit?
Your Jeep already has a diagnostic port. Just get a manual for the pin outs.
__________________
1988 Laredo 2wd Auto, AKA "Grey Ghost", 203K |
#6
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Re: ECU Breakout Test Unit?
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There's not much in the way of analog data on that connector though. A couple of relay outputs, but nothing like the O2 sensor, TPS, etc that he's interested in. |
#7
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Re: ECU Breakout Test Unit?
But those can be easily and more accurately read by the nickintime scanner. Why guess with a volt meter when the ecu will tell you what it's seeing?
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#8
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Re: ECU Breakout Test Unit?
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2. It at least $140 3. I can read a meter. 4. I have an FSM Not saying it a "bad thing". just suggesting other options.
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1988 Laredo 2wd Auto, AKA "Grey Ghost", 203K |
#9
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Re: ECU Breakout Test Unit?
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Yup, most of the individual sensors can be backprobed easy enough. The Renix isn't that hard to troubleshoot with a meter and a little bit of know-how. |
#10
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Re: ECU Breakout Test Unit?
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