View Full Version : Driving down the road then it just shut off.
05-07-2011, 09:29 PM
I got my swap done about a month ago. J32A1, 03 Accord Trans, Walbro 255 fuel pump, AEM Adj fuel pressure regulator, P2R Intake and TB gaskets, port and polished heads, 3.5L Type-S cams, and two different ECUs. Which are the 03 Type-S ECU, and now the 01 TL Base ECU. All done in a 95 Civic Sedan. My first attempt it cranked right up. Next day I did the clean up and took it out to the local car spot. Ran great all that night. The next morning I was doing some more off the clean up, and hooking up the OBD II port. A little bit later it was idling fine but it drove extremely sluggish and started backfiring. I drove it around the neighborhood and it stopped backfiring and started driving better(more like it did the first night). Then as I was driving it just shut off and wouldn't crank back up. Now its been doing the same thing for the past three weeks. It will crank up then rev up and shut off. Then it will just turn over. Unless I unhook the fuel pump. Then it will try to crank up on the small amount off fuel in the cylinders. I have check spark, fuel, timing, replaced cam sensors, replaced fuel, checked ground, power sources, checked the fuel injectors, MAP sensor, and alot of wiring. I have got the engine to run off of brake cleaner. I also have an Apexi VAFC 2 which I already took out of the equation. Any help would be great.
05-08-2011, 03:35 PM
So you made some wiring modifications following the night that it ran great. You need to go over what you changed and try to pin point what is causing the problem. If it started to do this after changes were made, I would say that's where you'll find the issue.
I had a problem with my CL-S swap similar to this. It ended up being a grounding issue. While it was being cranked, a ground was established, priming the fuel pump. Once it was running and the key was released, the engine would only run for about 3 seconds, then die when the pressure in the lines had dropped enough to make it stall. I took the two Logic Grounds from the ECU and made a permanent ground to the ECU mounting stud with an eye connector, it's been fine ever since.
I don't have any experience with the "fake auto" setups, but perhaps it's related to that?
Hope this helps.
05-09-2011, 12:23 AM
Appearently my stubborness and my belief that I didnt already mess up my car ended. I found out saturday night the back bank wasnt firing because the head gasket was blown. 0psi compression across the back three cylinders. The short trip for a head gasket I have ever seen out of a street car. About 15 to 20 miles. Coolant saturated the head gasket. I got the head off and I'm going to check and make sure its not warped and replace the head gasket.
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