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| The Official VR6 Engine Swap (Page 23/73) |
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bmwguru
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APR 13, 11:51 AM
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I have been working on the swap, but my schedule has been pretty full to take pics and post them. I wired up the fly by wire pedal and made a mount to bolt it in place of the Fiero pedal. I also made a computer mount for the Jetta ECM. The battery cables have been run and I head the engine crank this far.
The fuel pump issue was kicking my ass for a little bit, but I got that resolved. I really wish I went with a stand alone ECM and called it a day, but I wanted to challenge myself and see if I could get the VW factory computer to work in the Pontiac. Anyway, the Jetta fuel pump relay kicks on to prime the engine when the door is opened via the body control module. The SRS system disables the fuel pump in the event of a crash, too. So, The CAN BUS system is kind of kicking me in the head a little bit because the ECM doesn't function properly without the instrument cluster.
I am very tempted to pull the wiring and run a stand alone as I mentioned, but I'm not giving up yet. I knew that the wiring would give me some issues. I've swapped in a few VR6 engines before, but they all went in VW's, so it was pretty easy.
Also, my gold Fiero is getting kind of whupped for only having 60,000 miles on it. I already have the swap in mind for that one...and it will make this swap look like a walk in the park. Yes, it will be a Euro engine.
I'm not expecting much progress on the VR6 this week. I just received a bunch of new parts for my orange V8 that I want to install before Carlisle and I'm shopping for a new set of heads and Archie's aluminum flywheel for it as well.
Dave[This message has been edited by bmwguru (edited 04-13-2008).]
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Kuta
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APR 14, 07:05 AM
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PICS! 
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bmwguru
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APR 14, 10:21 AM
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I'll be posting some pics later this week if I can get five minutes. The good news is I heard the VR6 Fiero start up and run this morning. The fly by wire throttle works perfectly. I apparantly missed a wire in the diagram when I was doing the ECM wiring.
I still have a ways to go on this....the cluster, exhaust, shifter etc.
Dave
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darkhorizon
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APR 14, 12:54 PM
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This thread is useless without burnout videos
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Icelander
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APR 23, 01:41 AM
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Vonov
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APR 23, 03:32 AM
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On the clutch/brake bleeder thingie...you can make your own, using a pump-type garden sprayer; just replace the nozzle on the sprayer hose with a threaded 3/8" plumbing fitting (the kind that's barbed on one end and threaded on the other) and drill and tap a spare brake and/or clutch filler cap for the fitting. Fill 1/3 to 1/2 full with brake fluid, put the cap on the reservoir, pump up the sprayer unit, open your bleeder fittings one at a time until no more bubbles are seen, and you're in business. Would that I had had someone show me that trick when I was 17, lol...
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bmwguru
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APR 23, 06:20 AM
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I had to take some time off the VR6 for a few reasons. First, I hosted an event of Fieros and MINI Coopers at my shop on Saturday. My shop had to be cleaned enough for about 30-40 people to be able to hang out there and not get greasy. Second, my V8 Fiero is going out to Carlisle and I wanted it to be perfect for the event. I'm hoping to be able to replace the cylinder heads and swap in an aluminum flywheel before the trip. I also want to dyno it before and after the parts install.
I also have a few customers engine jobs that need to be done to pay the bills.
I will be back on the VR6 swap in full force once the Carlisle trip is over. It won't make it to Carlisle this year, but I am hoping to drive it to the 25th.
Dave
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bmwguru
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APR 29, 07:37 PM
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ok, I thought I was going to take a month off the VR6 swap, but I ran short on parts for customer's cars today. So, I wound up making the CAN line and K line harness. I designed it in a way that it would plug into the Fiero's factory harness using the VW connectors. The CAN and K line are the lines that the various computers communicate with each other on. In my particular swap, the harness isn't really used other than communication with the VW laptop, but I wanted to see if it was possible to make this fully OBDII compatible for diagnosis purposes as well as emissions legal. I found this to be possible. It is also possible to be able to run an automatic transmission in this swap and have it fully computer controlled with the VW software. Basically, I want this car to be able to be serviced by any VW tech.
For today, I hooked up my VAG software and was able to see live data, program the throttle adaptations with the fly by wire and read and clear codes. There is a programming issue with the engine control module that i have to work out. I discovered that this module was not from the donor car, so the coding does not match. I'm planning on reprogramming the ECM later this week.
The main reason why I am going through all this trouble rather than run a stand alone ECM is that for the TDI swap in the future, I want it to be able to function like a VW, not a Fiero with a diesel engine. When I add the turboto this swap, I'll most likely be removing a lot of what I am doing and run a stand alone.
The next phase will be making an exhaust system so that I can post up a video. I'll post more pics once the interior wiring is all loomed up. It looks like a complete mess right now.
Dave[This message has been edited by bmwguru (edited 04-29-2008).]
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Winkie
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APR 29, 08:00 PM
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Are you able to get it to run? Or does it still only run for a second?
Ryan
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bmwguru
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APR 29, 08:08 PM
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It starts and stalls. I thought it was the fuel pump relay that I had to rewire to work with the Fiero's wiring. That wasn't the issue. Then I figured it was the throttle module not being programmed, but when that was programmed today I could see the ECM was blocked due to being from a different Jetta. I have to read the coding from the cluster and then program the computer and it should stay running at that point...so the tricky part is over...I think.
Dave
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