rukkus
New member
- Joined
- Jan 26, 2016
- Location
- ON, Canada
Hello, thread of shame here
I made the mistake of swapping on low z injectors I pulled off a 94 940 turbo parts car I had. I have a +T 89 740 5 speed running LH 2.4.
Prior to the big goof I made, the car ran fine, apart from the occasional stall when coming to a full stop on a cold engine. Previous owner had installed ev6 style high z red injectors that (I think) came off an s70.
New Bosch turbo black stripe main pump replaced last year as well as fuel filter. And in tank pump is what I assume is the stock VDO unit.
So I installed the low z injectors, tried to fire up the car and no start. Wasn't sitting there cranking for long, but concluded that the ecu fried the injector driver after doing a little bit of research.
I swapped back in the original injectors I had, with the 'new' ICU and ECU from the 94 940 turbo parts car. Everything should be back to normal at this point. Car had a very hard time starting, and with the help of some ether, I got it running. Ran very rich though. Two days later, It left me stranded at work.
-i hear the pumps priming, although I haven't been able to check fuel pressure. Fuel rail doesn't have the Shrader valve, I do have a spare that has one, so that's next on my list.
-There is spark, although took the plugs out, they were covered in soot and fuel. Cleaned them thoroughly with a brass wire brush with no real difference in start attempts.
-Timing checks out, all marks are aligned.
-Tried swapping in a spare AMM, voltage regulator, FPR and the corresponding IACV in consecutive order.
- Radio suppression relay should be ok, I feel it click while I plug it in and out while ignition is on. Had a spare one I tried too.
-I tried the test while having the ignition on, and unplugging one of the injectors, I didn't hear a click.
-I did find a burned out fuse on #11, but unsure whether that happened before or after the incident. Replaced it with no difference
I'm just very puzzled with what else could have happened considering everything is more or less back to how it was, could have a short in the wiring somewhere. I haven't done a whole lot of electrical trouble shooting, not exactly sure where to start there so any input would be appreciated.
Thanks
I made the mistake of swapping on low z injectors I pulled off a 94 940 turbo parts car I had. I have a +T 89 740 5 speed running LH 2.4.
Prior to the big goof I made, the car ran fine, apart from the occasional stall when coming to a full stop on a cold engine. Previous owner had installed ev6 style high z red injectors that (I think) came off an s70.
New Bosch turbo black stripe main pump replaced last year as well as fuel filter. And in tank pump is what I assume is the stock VDO unit.
So I installed the low z injectors, tried to fire up the car and no start. Wasn't sitting there cranking for long, but concluded that the ecu fried the injector driver after doing a little bit of research.
I swapped back in the original injectors I had, with the 'new' ICU and ECU from the 94 940 turbo parts car. Everything should be back to normal at this point. Car had a very hard time starting, and with the help of some ether, I got it running. Ran very rich though. Two days later, It left me stranded at work.
-i hear the pumps priming, although I haven't been able to check fuel pressure. Fuel rail doesn't have the Shrader valve, I do have a spare that has one, so that's next on my list.
-There is spark, although took the plugs out, they were covered in soot and fuel. Cleaned them thoroughly with a brass wire brush with no real difference in start attempts.
-Timing checks out, all marks are aligned.
-Tried swapping in a spare AMM, voltage regulator, FPR and the corresponding IACV in consecutive order.
- Radio suppression relay should be ok, I feel it click while I plug it in and out while ignition is on. Had a spare one I tried too.
-I tried the test while having the ignition on, and unplugging one of the injectors, I didn't hear a click.
-I did find a burned out fuse on #11, but unsure whether that happened before or after the incident. Replaced it with no difference
I'm just very puzzled with what else could have happened considering everything is more or less back to how it was, could have a short in the wiring somewhere. I haven't done a whole lot of electrical trouble shooting, not exactly sure where to start there so any input would be appreciated.
Thanks