DAT240Z

I don't have a spare before I order a new I thought to post just in case someone may have had the same issue and could point my in the right direction

I was driving yesterday when the car came to a stop. Got it towed home and checked it out. It's not getting power. from the relay board. I have power going to the board, also have power coming out from the key on 12v source. I checked the pins on the 37pin cable and have 12v key on power but no power from the main 12v wire in the harnes.(white wire) checked the pin on the relay board where the cable connect to and no power is comming from the board. I also check the main power fues and the power there, I check the three relays and I have poerw on three sides of each. I also check the red power wire where it connected to the relay board and there 12v. So I pulled the cable off the ECU. and check for power and all I have is 12v key on power, nothing on the main power from the Battery.Would anyone have an idea what may be going on. P.S. The ECU is not powering up. There is also not signs of the relay board being fried

What are you talking about, did you even lookat the cable. Thanks

I order a speedo cable for my 240z from VB. they send me one like this. I can't seem to get the white part to fit in the back of the speedometer. Have anyone installed one of these on their and can tell me how to install it. http://cgi.ebay.com/ebaymotors/Datsun-240z-260z-280z-Speedometer-Cable-Assembly-NEW_W0QQcmdZViewItemQQcategoryZ6763QQhashZitem220081220700QQihZ012QQitemZ220081220700QQrdZ1QQsspagenameZWDVW Thanks

Len I did not use the lifters just the rockers, cam and lash pads. Looks like I need to buy new rockers and pads. Thans guys

Yes the cam, rockers and lash pads are from a P-90a Head installed on a N42 HEAD. Would I be better off putting the N42 lash pads and rockers back in and run the turbo cam. Thanks

I have a 76 280z motor that I turboed, I install the rocker and cam of my old turbo motor in the rebuild 76-engine. I have adjusted my vavles three times and can not get the car to not sound like a tractor.I was woundering if the niose is because of I'm running hydraulic rockers in a N42 head.

I dont think I mention this in my first post but my ECU has the coil driver but is not reliable thats whyI got the 6BTM. The megasquirt box have MS&SE install now,on Megasquirt site it said to turn off all the spark out puts and the unit will be fuel only. Is this how your is set up? Thanks

280zforce, I'm confused, are you saying that if I don't install the control knob for the 6BTM, I can use my turbo dissy. If so how do I control timming, as I'm using the megasquirt for fuel only.

I have a 240z with a 77-280z engine (N42/ N42), 83 turbo distributor and T3 turbo out of a 83 280zx,with megasqurit. I have been having a lot of problems with the spark side of megasquirt, it has not been reliable. The car have spark for a while then no spark, dies 50 miles away from home when I'm driving and have to have it towe home. I bought the MSD 6BTM box to control the spark and use megasquirt for fuel only.What I need to know is how do I install the MSD box with the turbo distributor for megasquirt to get injestor pulse. I have read the 6BTM would work with 77-78 DISSY, as well and would be an eaiser install. Have anyone used one of these boxes on their turbo car and is willing to help. Thanks

yes my spark is inverted, dwell is set to 4.0,2.8 running amd .1. I have had problems with the spark for almost a year now. Thats why I have decided to run the Msd box and use MS. for fuel only. Thanks.

I have been having a lot of problems with my 3.0, board with the coil driver. In looking for a solustion to my no spark condition,I would like to just run the box as fuel only and than run the MSD 6BTM sprak box for my timming. Have anyone ran that set up or is running this set up could you give me some feedback. I look on the megasquirt site for links to the fuel only code but could not find it. If anyone knows where I can find the fuel only code or how I can make my box fuel only could you please help me. Thanks

Yes when it dies I pull the coil wire and check and there no spark, Other times it will not run because there no spark, after it sit for a while it might run but soon dies again, when it loose spark

Pete, I just felt the coil driver and it's not hot. the car started for a few seconds and than die. I left the ignition switch for 4 mins. bofore i felt the coil driver.

The car have intermiting spark, it will start run for a litttle while no more than a min. if that long and dies. When I pull the coil wire and hold it body of the car to ckeck for spark theres none. my dewell setting is 4.0, 2.8- running and .1 My coils is stock, I have the (+) hooked up to the (+) side of the fuel and the (-) to the relay board pin # 5 I just went o try and start it again nothing it does not have any spark.

I just cecked the throttle position and it reads 0 close and 100% when I push the peddle to the floor. Car still does not have spark.

yes I have the spark inverted. my set up 76 260z engine N42 HEAD N42 BLOCK- BORE 50 OVER DISH PISTON STOCK T3 TURBO 83 - TURBO DISSY SUPRA INTERCOOLE 370 CC INJECTORS WALBRO FUEL PUMP MS 1 MS& SPARK EXTRA 3.O BOARD- WITH COIL DRIVER

Does anyone knows what code I need to just run fuel only, or how I set up ms. to just run fuel.

Hi Pete, Would that cause me to loose spark? I'm running the 024s13 code MS 1 with the 3.0 board, and MS is fireing my spark.

I just pull the wire off the coil, I'm loosing spark for while, when I let the car sat for a while it will crank up and run then dies, because it has lost spark. Anyone has any Ideas.

I just got my car running but the problem now is it runs for only 20- 30 secs. and dies, I have been playing with the after start enrichments setting but can get the car to stay ildleing. I have been reading the manual about calibrating the TPS, but when I input the reading megatune tells me the " value looks funny" I have try to adjust the TPS by moving it back and forward, but any reading I input in the calibration box tells me it's looks funny. This how I'm calibrating the TPS. 1 tools 2 click on get current 3 click on cancel 4 click on tools, clibrate TPS 5 ENTER the value plus add 2 ( so if I got lets say 34, when I ckeck I add 2 and enter 36) Is the way to set the TPS calibration? I not sure it this has anything to do with the car not running for more than 30,seconds or not. Thanks

Hey Jerry, I'm still around and still having problems with my unit. I have only had the car running for a week since the installation in may. I have lost spark again I do have injector pulse but that’s it. I could only get the car to run by installing a GM HEI. module when it ran for a week. I'm in Indiana do you know of anyone in the area that can helps I'm willing to composite them. It's ironic how it was me that asked you build me a box and document the build for us Z guys, and had my friend draw up the relay board diagram to go with the documentation, and seems like everyone can get the cars to run but me . LOL

Matt, It click at idel and while I'm driving. I do not have a PWM valve. I place my hand on the three realy and found the far right relay (THE ONE NEXT TO THE 37 PIN CONNECTOR) is the one that's clicking .

I just got my 240zt running, and notice the realy board does a lot of clicking while I'm driving. Would anyone know what would cause this, or is the clicking normal. stock turbo 370cc injector 3.0 board 3" ext.

I have the same problem, the coil only fire a few times and than stops, the tries to run but dies. I send the ECU back to DYIAUTOTUNE, twice. The first time he found the the unit have gotten hot and fried the vb921, also lost one bank of injectors which he fixed.The second time he found nothing wrong, I got the unit back friday and the skark still does not work, I have replaced my coil,check all my wires, grounds, still nothing.I have been fighting this problem for a month now. I have serched the megsaquirt forum and have not found anything that could help.I'm seriously thing of buyng SDS. When I think of all the money I have spent on megasquirt I could have had SDS. Lets hope someone here can help us.