9/30 – (start of thread)
Previously with the Sachs disk installed I was having issues with entirely random misfires which I couldn’t narrow down. I checked timing, unplugged a couple plugs while it was running to try and narrow down which cylinder it was on but I could find it. The annoying part was that it would run PERFECTLY every other start up.
The only thing I hadn’t replaced on the motor were the coil packs so naturally that’s where my brain went. I have another 2000 V70r with a blown head gasket so I pulled the coil packs off that and put them on. I had also been having issues with the throttle while cruising at light load before the swap so during the process we had swapped to a XemodeX unit. I got it from a local guy that said it was from a 2001 t5 I believe, not sure on the motor or car but I know it was 01 turbo (obviously). I knew it was a long shot but I wanted to try it. It of course threw a couple codes that I pulled from VIDA;
- ECM-6310 (ETS Warning Lamp)
- ECM-904D ETS Warning Lamp – Information
- ECM-530B Malfulction indicator Lamp (MIL) communication
- ECM-6300 ETS Warning Lamp – Signal missing
- ECM-9190 Throttle position (TP) – Faulty current. I believe with the XemodeX throttle that was
10/27-10/28
Not having much time with the lift I immediately tore into the car and got the transmission pulled and found the clutch and slave issues as previously posted. The car then sat for a week until I could get a new slave cylinder delivered. Oh and just to clarify we pulled the transmission with the engine “in place” or dangling from an engine support bar.
11/2
I got the trans connected back together to the engine with the used c70 clutch (not ideal I know) and quit for the night leaving the engine and transmission dangling in the engine bay by the support bar.
11/3
While putting the car back togetherI also swapped the coil packs and removed the throttle in favor of one I had kept around from my old 2000 v70 xc. Of course I did both at the same time and didn’t try swapping the coil packs or the throttle seperately, but the thought of having to change the throttle out with everything in the way annoyed me so we did both.
When we got the car back together I had some issues with a partially dead battery but we got that charged up and the car immediately started and ran like it should. We buttoned up everything and took it for a long test drive (30-40 mins) with no issues. It had probably ran for longer than that while we checked fluids and whatnot but I digress. It did however still have some codes for the throttle for some reason.
- ECM-6310 (ETS Warning Lamp)
- ECM-6300 ETS Warning Lamp – Signal missing
- ECM-903F Throttle position (TP) – Signal too low
Similar but not the same and it still ran fine and the check engine light stayed off so I didn’t worry about it. I just chalked it up to an old throttle or possibly the ECM was just mad it wasn’t the original for some reason. Call it wishful thinking I guess but I deemed it safe to drive. I’ve been working on the car at my in-laws place in Spokane, WA, cause they have a lift, but I live in Tacoma, WA. So I loaded up all my tools and got ready to leave in the morning.
11/4
We left mid morning and everything was going well. No leaks, no hesitation, no misfires, it was running as if it was meant to be this way. About half an hour into the drive to Tacoma I downshifted to 5th do a very light pull as I was still trying to get used to the car. I was going 60 MPH and got up to 75 MPH or so and then I lost all power. It would come back for a couple seconds and then go away again like the throttle was being disconnected then connected again. It continued to do this until I put in the clutch and it died. Pulling to the side of the road I tried starting it again and it started, but immediately died. I tried several times and got the same results except ONE time when the car attempted to idle at a very unstable 200-400 rpm while hunting aggressively. I immediately got out my laptop and scanned for codes and only found the same throttle codes it had when I left.Of course the weather was also horrible with it pouring rain and 20 MPH wind with gusts above 35 MPH. Needless to say I was not happy with my decision to leave at this time. I called my Father-in-law and he came and towed us back to the shop to do some trouble shooting before we ultimately left the car there again and headed back to Tacoma for work.
Troubleshooting – What I’ve done so far
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- checked all electrical connectors
- checked all intercooler piping
- checked battery voltage to main fuse box and starter and alternator
- checked battery cable voltage drop to starter and alternator
- jumpered the fuel pump relay
- checked ground at ETM plug
- swapped throttle back to original throttle
- connected a loose evap solenoid vacuum line
- checked continuity on all fuses
Things I haven’t done but are on the list
—————————————-
- check fuel pressure
- run ETM sweep test in VIDA
- swap out injectors for rebuilt units
- test/swap maf
- check turbo inlet pipe (I know, should have checked that first)
- drain old fuel (car has been sitting since 7/23
- check timing (though belt tension was fine still)
- check cam/crank sensors (I think this would cause a crank no start situation)
- check ground to throttle pedal
- Test/swap alternator
- swap battery
A couple things to note: When pulling the trans to replace the clutch we didn’t touch any grounds besides the one that goes to the trans and the two ground straps on the head. of course we had to remove the battery cables from the starter but otherwise the only wiring we dealt with was the stuff going to the O2 sensors and TCV/MAF and whatnot on the drivers side engine bay. The only mods on the car besides the swap is a Snabb RIP kit and simota CCI. Otherwise it’s all bog standard. All vacuum lines were replaced prior to the swap as well.
Obviously I wasn’t able to do much troubleshooting as most of what I did do was on the side of the road in the pouring rain, but if anyone has any other ideas or previous similar issues I’d love to hear it. Also if anything in the list can be written off by a simple test I’d love any feedback.