Love this build thread! Thanks for posting it.
Far out.
Thanks man. It has been interesting.
Love this build thread! Thanks for posting it.
https://www.lsxmag.com/tech-stories...-on-obdii-vehicles-with-the-edge-insight-cts/I spent all weekend chasing down the source of my gauges not working problem. I read all the threads, tried every trick, cleaned every pin and checked every ground, and to no avail! Anybody know of any experts in CCD bus or XJ wiring in general? Extra points if they are in the San Diego area.
The spot behind the bumper is the location for the intercooler on the 2.5L turbo diesel XJ. It can be an out-of-sight, out-of-mind mud trap depending on where you go wheeling.There is about an inch of space left up front for an intercooler. Not sure if I am going to put it in that space or the space below (right behind the bumper).
The spot behind the bumper is the location for the intercooler on the 2.5L turbo diesel XJ. It can be an out-of-sight, out-of-mind mud trap depending on where you go wheeling.
I have often wondered if it would be better to use an air to water intercooler. This could be done using a separate cooling system to the engine, an electric coolant pump and radiator(s) with fan(s) located in the rear quarter(s) with the intercooler closer to the compressor output.
The Toyota Celica GT-Four RC was a homologation model used for compliance with FIA World Rally Championship rules. It used air to water intercooler which Toyota considered better for competition use than air-to-air intercooler in the normal GT-Four.
Maybe install it on top of the engine and run a scoop on the hood like the older Subaru STI? Just thinking outside of the box and throwing it out there...Good info. Thank you for insight. The camaro had a liquid to air intercooler that was entirely independent of the engine coolant system just as you described although it was placed in the very fron of the vehicle so no fan was needed. I kept the reservoir and pump wiring harness and hoses for use with this project. The radiator itself is way too big to fit anywhere up front on the jeep. Since I wont be flogging the jeep too terribly hard (at least not often) I think that the space behind the bumper will be my best bet. Many folks that only boost 6psi dont even bother with an intercooler so I am inclined to believe that I can get away with a small one in that location. I called Magnuson (the supercharger manufacturer) and they strongly recommend running some sort of intercooler. I will have to keep the mud in mind and remember to rinse it out after any exposure.
I spent all weekend chasing down the source of my gauges not working problem. I read all the threads, tried every trick, cleaned every pin and checked every ground, and to no avail! Anybody know of any experts in CCD bus or XJ wiring in general? Extra points if they are in the San Diego area.
Cool Project.
Figured out the problem with the speedo: when I rebuilt the transfer case I installed the VSS in the incorrect orientation. I had it setup for a smaller gear. Got her swapped and speedo jumped back to life. Only one electrical gremlin left. The dreaded and mysterious no bus error.
That sounds like a terminating resistor might be missing? What all was removed from the bus?
I did a very good circuit diagram study to identify what I changed that would have caused this. When I wired the AC circuit (into the GM ECU) I used the existing XJ HI and LO pressure sensors and connectors. I gave myself 12V from behind the dash area, ran that to a button, that went through the firewall and to the LO pressure switch. Here is where I cut the Blue/White AC sense wire to apply my 12V to the XJ circuit (LO pressure sensor connector) when my dash AC button is pressed. The current then flows to the HI pressure circuit, if that sensor is in limits it closes the switch and sends current to the GM ECU. The GM ECU sees this, turns on the radiator fans and sends current to the AC compressor clutch.
The problem was that the XJ ECU was looking for voltage on that Blue/White AC sense wire. I very timidly gave it 12V from another source turned the AC on and crossed my fingers. I waited the requisite 15-20 seconds and much to my delight no more no bus error!
When I highjacked that circuit I didn't realize that it would cause me any problems and still don't see how that ends up being a no bus errors since none of that circuit is on the bus.
I am sure there is a way to use the XJ circuit but it cuts power instead of providing it at that sensor switch so I just couldn't figure it out. The folks at Novak tell me that a few people have been able to make it work as well.
Please shoot some video. I'm sure I'm not the only one that would love to see it move.