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91 BRG 1.8BP MK turbo build

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Old 05-13-2018, 04:24 PM
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First start doesn't sound good. Is this vvt racket? The oil control valve is untested.

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Old 05-14-2018, 11:41 AM
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I think I might be running on 3 cyls. Gonna run through the injector & ignition diagnostics tonight.
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Old 05-15-2018, 01:55 AM
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All 4 injectors are firing, and in the correct order. All 4 coils are firing, and in the correct order. The timing is correct.

Maybe a clogged injector? I pulled the fuel rail, and there's nothing obvious. Still thinking about how to test injector flow without sending them out.

I guess the other thing I should do is pull plug wires one by one to determine which cylinder isn't firing if that's actually what I'm hearing.
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Old 05-15-2018, 02:02 AM
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It should also be noted that it sounded perfectly normal when I cranked it without plugs to prime the oil.
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Old 05-15-2018, 07:53 AM
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While the motor is running, are there any changes if you slowly remove a spark plug wire from a cylinder? Also does the same thing happen if you unplug each injector one at a time?
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Old 05-15-2018, 09:58 AM
  #266  
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I can't really unplug injectors while the motor is running, or coils 3&4. But I can unplug the coils one at a time and see if it still starts. I don't think it will start on 2 cylinders.
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Old 05-25-2018, 02:29 PM
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No real updates except that I'm 47 days into a sinus infection and starting another 3 weeks of antibiotics. Usually Car-No-Start would be living hell for me, but I haven't even touched it in 2 weeks. I'm gonna try to get out and tinker with it over the weekend. here's my list of things to try:

1) load new tune. Maybe idle VE was total ****?
2) check high speed log. Maybe crank sensor isn't picking up a good signal?
3) check compression. Maybe something mechanical is wrong?
4) get injectors cleaned. Maybe I have a clogged injector?
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Old 05-28-2018, 08:09 PM
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Running, but a little clatter. Had to advance trigger wizard by 8* to get it to idle at static 10*. That seems like a lot, seeing as this is a VVT setup without an adjustable cas.

Edit- retard by 8.

Last edited by wackbards; 05-28-2018 at 11:10 PM.
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Old 06-02-2018, 05:19 PM
  #269  
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Car is running! I did a few miles of auto tuning, but I can't seem to get VVT working. Both the oil control valve and the vvt cam gear are off my old motor, so I know that they should be working mechanically. VVT just isn't responding under normal operation, or in test mode. I'm open to diagnostic recommendations.
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Old 06-02-2018, 06:21 PM
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ahhh... OCV tests outside of spec. 8.4 Ohms instead of 6.9-7.9 Ohms. Let's try again...
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Old 06-02-2018, 06:33 PM
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Didn't fix it.
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Old 06-02-2018, 06:53 PM
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Does in have 12v? Continuity from signal side to MS output?
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Old 06-02-2018, 07:10 PM
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Good call. Getting less than 1v. Yargh. Time to tear into the harness
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Old 06-02-2018, 07:32 PM
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Well Curly, that's worth a PayPal beer in my book.

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Old 06-02-2018, 07:43 PM
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Cheers! Glad it’s working.
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Old 06-02-2018, 07:46 PM
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When making butt splices, always do a pull test. Aka...pull it. A couple tugs. If it comes out, it was eventually going fail and you saved yourself the head ache later. Also, always use heat shrink connectors. Which looks like to you did, but didn’t shrink them. That’ll save some of your weaker crimps. Make sure you’re using a proper ratchet style crimped too, not just some flat pliers.
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Old 06-02-2018, 08:11 PM
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Yes to correct crimper, no I didn't heat shrink. Looks like my wire routing was just putting too much tension on that connection. Added some slack & buttoned it back up.
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Old 06-11-2018, 01:34 PM
  #278  
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Well, the car is up & running. So far, the engine break in issues have been relatively minimal:

1) VVT OCV wiring came apart
2) IC hose coupler was lose
3) my 3 yr old PC680 finally died due to massive abuse. Tough battery. I replaced it with a PC625, which on paper appears to be cheaper and slightly better CCA.

This weekend I put the undertray back on, and gave the car a bath. It's gonna take me a loooong time to break this motor in just because I don't get to drive it very often right now. I think I have 14 miles on it right now.
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Old 06-15-2018, 12:32 PM
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I may as well post up the first and last pic of the new motor while it looks clean. What was I thinking painting it white??? I guess I just wanted to brighten up the bay and make any leaks visible. No question oil shows up. Shoot, even fingerprints show up.

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Old 06-18-2018, 12:10 PM
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On the last week of wrenching on the engine swap, I discovered a massive mouse nest in the passenger footwell. The carpet was completely destroyed. Luckily, I nabbed a carpet from a local member. Unfortunately for me, it was out of a RHD JDM car. Since the 1.6's have the ECU under a kick plate in the passenger footwell, the carpet is 6" shorter on the passenger side. Of course, the JDM carpet is short on the wrong side... A little bit of creativity with scissors and Velcro fixed it up real nice.

As an aside, alternating treatment of the interior metal surfaces with baking soda & vinegar completely eliminated the stank. I also treated the bare metal with cedar oil spray to discourage them from visiting again.
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