Almost year and still no start....

[kingdutka]

I could go through the whole story of everything that happened, but it is a long, painful story that will most likely only serve to piss me off, so let's get right down to the update.

For those of you who don't know/remember, I had a swap done at a shop and ended up pulling the car from the shop. After a few months, I convinced a friend to work on it (he is a professional mechanic). We decided to send off the wire harness for "repair" and were told that 5 wires were broken and THIRTY TWO were misplaced!! OMFG!!

The harness is due back any day now and we are really hoping for a "plug, play, start" installation. I'll post back here after we try it out.

PS: The name of the shop that F***ED my wiring was "Hi-Performance Art" in Blaine, MN. STAY AWAY FROM THEM!! They did awesome on my engine installation including auto to manual transmission swap, but they completely destroyed my wiring system. My passenger window won't go down and the convertible top doesn't work any more.... (and of course, the engine won't start due to no spark).

[Rusker]

Who did you send it off for "repair", and how much did that cost you?

[kingdutka]

My mechanic sent it to his contact in Texas. This guy really knows his stuff. He originally wanted $100, but I told my mechanic about wiringspecialties.com and they matched their price at $80. I would have preferred wiring specialties, but my mechanic has his connections he does regular business with and I respect that too (especially since they matched the price :P ).

[Rusker]

Also, do you think the gas in the 240 will have gone bad by now? I read a thread about someone having starting issues and it turned out the 6 month old duel had gone bad. Seemed kind of quick but I suppose it's possible.

[kingdutka]

No, we've been having a "no spark" issue since the engine was installed and the fuel has been treated with Stah-bil.

[bgsr240]

I suffer from the same problem. Post it up when you find out what is wrong.

[Rusker]

Updates?

[kingdutka]

Waiting on the wire harness from Texas. Should arrive any day now.

[Rusker]

How'd it turn out?

[kingdutka]

Got the harness back. They asked me to get a MAF plug because it was broken so I had them send it back without fixing that part and ordered one from ebay for like $13. It should be here any day now. I promise, I will post the day I get it working.

[IanS]

Wow, your still chuggin away on that thing huh? I really hope this thing works out for you, I want to see that car live, maybe it will even be around for MNNissans Dyno day in April.

[kingdutka]

It has been VERY slow going on my meager budget. Full time college, wife and 2 kids, and no job. It ain't easy, but it'll all pay off when I graduate this Spring!

[Rusker]

I'm sure my swap will take longer than yours. Full time college, full time work..

[kingdutka]

I have spark!! We got the wiring harness back finally have progress!

On the downside, I installed the CAS incorrectly and need help with it. Check out this post I started if you can help:zer...d=138

[kingdutka]

It's alive!!!!! MUAHAHAHAHAHAHAHA!!!! WOOHOOTY!!!

<does a little dance, sings a little song, gets down tonight>

I had to order a clutch hose cuz the idiots at the "pro" shop didn't put one on, so it'll be a couple more days before I can drive her around again, but she is alive!!!!

For those of you with ANY sort of doubt about your electrical system, SEND IT OUT! Have a professional do a wire harness repair. You will be able to rest easy knowing that is not your problem and you will be happy with the results!

[IanS]

Good to hear it. Now get that thing all cleaned up and get her ready to bring out to one of the meats. Have you checked out MNNissan yet?

[Rusker]

Congrats. Did they mention what the problem was in the harness?

[Emperor_Tha]

probably for got to hook up the blue/red wire to the black/red and brown wire near the battery tray. I forgot to hook that up when I did my wiring.

[kingdutka]

Actually, they said 5 wires were broken and 32 were misplaced. I believe I already said that in my very first post.

I should be getting my clutch hose any day now at which point, I WILL be driving my car with the new SR motor!! WOOHOO!!

[kingdutka]

Car is running and driving, but having a major issue. I'll try my best to explain it:

Starts good, idles good, revs good. Put in gear, start to move, it coughs and jerks. Open up the throttle a bit, boost kicks in, car accelarates normal (omg is this fast!). Reach desired speed and level off accelerator, cough, jerk, jerk, jerk. WTF? Gas, accelerate normal, level off, jerk, jerk, jerk (kinda hard too, like the car is dying). More gas, accelerates normal (but seemingly not until the boost kicks in? about 80% sure).

EDIT: I just learned this symptom is referred to as "bucking" and it does it kinda hard....

If I "work the gas" or "feather" or "pump" it, however you wanna call it, I can get it to go pretty good. I ended up driving home which was about 10 miles maybe.

I was told by my mechanic it could be a variety of issues: Intake Control Valve, Throttle Position Sensor, Bad Timing, weak/faulty MAF sensor, or maybe wrong ECU. The ECU I have was tuned by MINE's racing in Japan and said it was for an SR20DET with upgraded exhaust and intake systems which I have both, so I don't think that's the problem, but still could be...I don't know.

Anyway, I don't know how to check all that stuff, what order to check them in, and what to do if I find the problem (which I said I don't even know how to find), so I need some help.... What should I do?
Modified by kingdutka at 12:21 AM 2/16/2008

[kingdutka]

According to the troubleshooting FAQ on Heavy Throttle, it could be MAF, MAF Wiring, or a leak in the intercooler piping.

I just got 5 new t-bolt clamps for the piping, so I doubt that's an issue. I am going to double check the MAF wiring tomorrow.

[j_rocc2003]

hmmm...... i have never heard of this shop at all. where did you hear about them and what was the tech's name that worked on your car?? Next time you have an issue like this, go to Ron at RSmotors in burnsville. i know it's a bit of a drive for you, but he knows hit stuff. I would almost like to see your car in person and see this "bucking". Anyhow, names josh. I dont know if you know, but there is a local forum called d-town.us that we have. mostly nissan guys. should check it out. anyhow, good luck on that and i hope all goes well.

[jr_ss]

I would try a known to be good MAF from a buddies car or such and eliminate the possibility of it being your MAF. If it does the same thing with that one, you know the problem is else where. You should be able to check the wiring diagram for the MAF and make sure that is correct.

Is it running rich at idle? Smell gas when you are driving it? I'd check all your couplings like you said you were going too.

[kingdutka]

Turns out my MAF, Wiring, and plug are all brand new and done up right. All my intake plumbing is tight too...

Can someone post a pic of their blow-off valve IN the engine bay and working? I don't know anything about them and want to make sure that part is hooked up right.

What else could cause bucking?

[kingdutka]

Just talked to the guy who wired the MAF for me. He said the plug had 5 pins, but only 4 wires on it and the harness only had 3. He attached the 3 from the plug onto the harness and put the 4th to ground. Is this correct? (Assuming the 3 he attached to the harness are in the correct order...)

[j_rocc2003]

timing could cause that. and does the BOV work?? it should be hooked up on a vacuum line on the intake mani. is it surging??

[kingdutka]

Just did an ECU test and got a code 12. So it's the airflow meter circuit. Does that mean "any given part within the flow of air? could be faulty? Or is there a specific part that could be causing it?

Where can I get a wire color chart for the MAF and what is the worst possible thing that could happen if it is wired wrong?

I do still need a picture of a blow-off valve IN place in someone's car please!?!?

[kingdutka]

timing could cause that. and does the BOV work?? it should be hooked up on a vacuum line on the intake mani. is it surging??

Bells going off in my head! There is no vaccuum line coming off the Blow-off valve and going anywhere. I do see a rather noticeable spot for one, but I don't know exactly where it connects to the manifold.... That's why I need a picture, I found 3-4 possible spots to put that...

[kingdutka]

actually, not so much a picture of the blow off valve, but a pic of where the vaccuum line for it attaches to the manifold. If you could even draw an arrow pointing at it or circle it too, that would rock!

[IanS]

The BOV vacuum line should be hooked up to manifold vacuum, check all your vacuum lines. The airflow circuit refers to the MAFs specifically, it means either there is a fault in your MAFs or its wiring. An Airflow circuit may also be caused by a bad vacuum/boost leak.