violacleff

January 15, 2005

Well in addition to the host of problems I have with my wiring, when my car is on it runs very rich. 45 psi at idle. Now my FPR is closed all the way down so I cant lower it from there. It was suggested to me that my return line might be clogged. So I'm going to check that out. I was also wondering if this 90 degree bend in my routing may be the cause

Any other suggestions? When I kill the fuel pump when the car is running it starts idling just fine, until it dies.

January 14, 2005

Well thats how I currently have my fuel pump wired but not to the ACC. I know its not safe, but it wont turn on any other way.

January 13, 2005

Exactly what read would I be looking for to know whether or not the injectors were staying open/firing? I'd be really pissed if these injectors are bad, I bought them from someone who said they only had 500 miles on them. Honestly all this work to get the stock/z31 system running off of someone else who had previously messed with the harness, I should have done a megasquirt, and could have just used my RC500cc injectors which are brand new.

January 13, 2005

Thanks for the replies. Here's my update. The car wouldn't start when I ran power to the ACC though the lights were on only when the start position was on which was what I wanted. However, the fuel pump would not turn on when wired the way you posted and I wouldn't get any spark. So I wired back the way I had it and it turned on. Here's another wierd thing... The car ran really rough, and wouldn't idle well. Then when I turned off the fuel pump vial the kill switch (since the car doesn't shut off when wired this way) the car ran great while the fuel pump was off!! and for a shocking long time. Also the fan wouldn't turn on when wired with the relay but works going straight to the battery. Could all this mean I have a bad relay(s)? What do you all think? BTW, we ran the wire to the ACC behind the stereo.

January 12, 2005

I have some greddy 60mm gauges that my friend gave me. I thought I'd take out the clock and put the oil/water temp gauge in there. BTW would it look bad if I put to gauges on the dash? (Its cracked so that part's no biggie)

January 12, 2005

Please excuse my ignorance but what is ACC+? I do have it running to the battery, so perhaps this is my problem. I thought ACC+ meant AC power (hence why I ran it to the batter). I've never wired before so if I sound really stupid........

January 12, 2005

Well its exciting to hear the car run after a year and a half of not running. However I've yet to figure out how to wire the ECU so that its only on when the car is in start position and now it seems that something in the ignition isn't right because the car wouldn't turn off by key, I had to disconnect the battery. Could these two problems be related? Is there a thousand different reasons why the car woulnd'nt cut off when I turned the key when it was in the off position? Or are there a few obvious reasons that someone may be able to point out?

January 8, 2005

I figured that was the problem (or at least one of them). Its figuring out why thats the real problem. This project has gone from fun to way beyond frustrating. Well end of Jan=tax return=haltech=over the phone support. At least I got something to look forward to.

January 8, 2005

just to make sure, am I supposed to be using the firing order from the Z31 or the 83 dizzy? Are they different? I checked the MAF and it was on correctly.

January 8, 2005

he wants 400 for it. You think thats a good deal?

January 7, 2005

Well i've finally settled on the fact that my Z will not be running for a long long time. I paid my friend 200 bucks to use his 92 corrola LE for the month and I got rearended about 7 days later. I've been using the rental that the insurance gave him but today's my last day. The car was totalled out but still runs well. If a car is hit at 35-45 by a honda civic do you think there could be any significant damage to the suspension that would make it unsafe to drive? I think I could buy the car off of him for $300 and use it as a beater/daily driver until the curse lifts off my Z . What do you guys think? OH yeah the two right doors don't really shut perfectly anymore but they will close is that a frame issue?

January 7, 2005

Tim is that Dry Wash N Gaurd or something different? I use to sell it like 6 years ago. Didn't know they were still around. I still use the stuff on my car. Love the shine. Hey how do you handle a really muddy or dirty car though when your detailing with it?

January 7, 2005

Damn that sucks. Same thing happened to me the night after christmas. I was sitting at a red light and heard that beautiful noise that one hears just before whiplash. Well it wasn't my Z, but my friends car that I had paid him to borrow while I'm getting my Z running and now I'm carless. Had it been my Z though.......

January 6, 2005

Thanks for the reply. The obvious stuff is what I'm looking for Grayzee. I'm still quite the novice. I'm 100% sure I didn't install the CAS upside down as I was conscious of that the whole time. I rechecked the firing order twice. All the wire were pulled apart and retraced and were as I posted them in the turbo section I believe. I will however recheck the MAF. What about the ECU turning off as I try and start the car? Is this a major clue? I still have yet to figure why it is on (both lights) when the car is on. I'm sure its a mistake in the wiring but I'm not sure as to what's the proper way at this point. I'm also curious as to whether or not I put a bad CAS in the dizzy or the wrong one. Everything else engine wise is together.

January 6, 2005

Ok, I put in the stock injectors, car makes a bunch of popping and clicking noises but doesn't start. I checked each seperate cylinder and the coil for spark and everything's good there. I'm getting 45 psi fuel reading. Here's what I noticed, When I crank the car, the ECU lights turn off. I've still yet to figure out how to wire it properly so that the lights are not on when the car is off and today I find that the lights go off when the car is turned on. Go figure. This really sucks. I was sure the car was gonna start tonight.

January 2, 2005

I did contact Bernard about the chip but he only works with 370's and ford type injectors 440's. I have RC500's, which by his email he sounded like he didn't want to go through the hassle of programming for. He said it would be a hassle figuring out other injectors. Otherwise I would have gone that route (assuming I ever got the car wired correctly). The wires going straight to the power are Pin #2,27,35, and 34. Pin 34 has a fuse before the battery. Is there another way I'm supposed to wire those? Hey I'm just thinking. When we tried to start the car, we had not yet hooked up the CHTS. I had just bought the harness from Nissan but we hadn't wired it yet and it was getting late. Might that be causing a warning signal? Also If stick the stock injectors in and am running a T4, would I have enough fuel to be safe as long as I keep the boost at stock level?

January 1, 2005

Yes it does have spark and fuel.when I try to start it the engine goes "put put.......put put" and I can smell some exhaust. I thought at first it was the injectors keeping it from firing, so I'm buying stock injectors to use until l can afford a stand alone. I just didn't think I was supposed to be seeing the ecu lights when the car was off. Furthermore only the green light should be on correct? I have green and red showing at the same time.

January 1, 2005

I finally wired the car and got power to the ECU and both red and green lights are on. The question is, are both of these lights supposed to be on? And am I supposed to run a special relay so that the ECU is not on when the car is not on? As of now the ecu lights up as soon as the battery is connected. I'm reading the manual that says one flash from both lights means a afaulty CAS, but its not flashing. It just remains on.

December 31, 2004

First of all I apologize if this thread is out of place, but there are so many options I'm not sure where it would go, but since most guys here have an l28et.......

My last thread discussed some of my prior problems which I have worked out I believe. I'm finally getting spark and when I turn the motor I am getting a "Put Put.....Put Put PUt" sound and can smell exhaust (no exhaust hooked up yet). Now here's the deal. My origina setup was going to consist of a Z31ECU, E-manage piggyback fuel management, and RC 500cc injectors. The going concensus has been that a piggy back is a bad idea. So I was trying to see if the car would fire (I knew it would not idle) with those injectors since I don't have stock ones, just to see if the car worked and was wired properly. Well the car didn't completely fire I just got the reaction that I mentioned above. Should the car have at least fired or is this what should have happened with such large injectors? and am I just a set of stock injectors away from the car running? If so, my next question is.... Since I cannot yet afford a stand alone system I was just going to buy a set of stock injectors and run stock boost until I get a haltech. However I have a huge T4, and was concerned whether or not I would have enough fuel out of stock injectors. I figured it shouldn't be a biggie as long as I'm running stock boost (6-7 psi). Is this ok? Or will it run lean regardless?

December 30, 2004

I'm leaning towards that, although that will be another x amount of months before I can get my car runnning. While I'm saving up for a haltech though, perhaps I can get some stock injectors from the junk yard and run stock boost. Will it make any difference that I'm using a larger turbo (T4)? If not, I should be able to safely run up to 10 psi before running out of fuel right? I have found a dealer that has the e6x for 1250 for everything. Too bad noone does credit or finance like they do for stereos and rims.

December 29, 2004

So I decided to trace the wires to make sure it was hooked up correctly. Here are the wires in question according to an online link given to me for the 88 Z31 (though mine's an 87).

1. Pin#9 (which is ignition switch) is hooked up to the harness but cut off.

2. Pin#15 is missing. Is this necessary and if so where does it go?

3. Pin#16 is supposedly supposed to go to the air regulator but is going to the green relay (that goes with the fusible link).

4. Theres a small harness that is not hooked up to anything that has five wires leading into it. Wire #1 is w/y which goes to pin #6. Wire #2 is b/w which is crimped up with 3 other wires, one of which goes to the cas, the other goes to pin #35 and the last goes to pin#27. Wire#3 is L/B which splits into two, one of which goes to pin#18 and the other goes to TVS. Wire#4 is y. It's cut off and leads nowhere. Wire#5 is B, and is also cut off leading nowhere.

5. Pin#21, 22, and 23 are cut off and not being used.

6. What does CHTS stand for?

7. Pin#28 goes to #36 (as it should) but also splits into another wire thats not being used.

8. Pin#29 is cut off and not used.

9. Pin#115 has no wire to the harness.

Is there anything here that needs to be corrected? And could anyone answere some of the questions? Thanks.

OK and while I have all of your attention. I have read mixed opinions on the site regarding using a piggy back for bigger injectors. The person who sold me the harness also sold me the greddy E-manage with/ optional ignition harness with the wiring already modified for it. He said it should be good for running up to 21 lbs of boost. I only plan to run 15lbs-18lbs on the street. Is the piggy back idea bad? I've seen the E-manage on high boost engines, but one member advised that it was a bad idea. Any other thoughts on this? I'm running RC500cc injectors, and T4 turbo.

December 16, 2004

Thanks for the replies. Actually my fuel pump would start up as soon as the battery was connected and would not turn off after I shut the car off. I tried to get some info on how to properly wire the relay and pump in earlier post but could not get any good answers so I setup the fuel pump on a kill switch to fix that problem. I will check out those suggestions you gave me Afshin. I hope I can figure this out. Thanks a lot

December 16, 2004

The fuel pump is turning on. I have plenty of fuel pressure, but I'm getting no spark. I checked the firing order, and tried turning the dizzy while the ignition was turning but it wont fire. I am not getting spark from either the dizzy or the coil. One of the wires that comes from the ignition module to the ecu was out, and we figured that was the problem. So I purchased a z31 chilton manual and as luck would have it, it had the wiring diagrams for everything but the ecu. I have a scan of a diagram a friend sent me but it is not clear as to the exact pin that it goes into. I was pretty sure that it was 5th slot but it didn't fire when I tried. As far as the ECU is concerned, I'm not sure how I would even know whether or not it even worked. I don't remember there even being a light on my ecu. If there is, it sure didn't light up. I'm going to go check it out right now. Yo2001, whats an FSM? factory service manual?

December 16, 2004

Well after having gone 5 all nighters trying to wire the zxt/z31ecu with no success, I've decided to sell off all my electronics and just wait till I can afford a haltech. I think the problem is that I bought the harness from someone who supposedly had already modified the harness for the Z31 ecu and Maf. I also paid someone who had done it before, to come down from LA and finish wiring it for me. Since I didn't start from stock, I have no idea how to trouble shoot this thing to figure out why it won't start. I figure if I bouhgt a stand alone, at least I'll know that everything is supposed to work and I can get product support. Anyhow I found a dealer that sells the Haltech e6x for $1250 that includes everything to get running and tune. This is the best deal I've found so far. Does anyone know of a better deal? Also anyone know of any dealers that do credit? I've never heard of it before but I know that stores finance desktops and laptops, why not ecu's? Well if anyone is smarter than me and needs a wiring harness for this setup, let me know. Alex Costa, how is this price compared to yours for the haltech?

December 16, 2004

Do you just need a picture of it? I believe I have a pic of it on my computer. I'll send you a pm

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Posts posted by violacleff