afbrian13 Posted January 23, 2006 Share Posted January 23, 2006 I haven't been on here for awhile since my wife is pregnant, and we moved last month, but now I can work on my toy again. Its not running as you could guess. lets see, to update. 76 280z/82ZXT swap using 82 harness. I hooked up the wiring as it is in the standard posts everyone preaches about. It ran rich( enough to flood the engine ) for a couple days. Then it just wouldn't start. NO SPARK I know the coil is good because i've used it in a different car. I have two ECU's (I thought that was the problem so i bought one from a know good car) AFM has been tested according to FSM my injectors do fire so I would say the Dizzy is good. This led me to the tranistor. My tansistor was physically bad (broken pin) I found one at radio shack for about $2, but couldn't plug it straight in since my mount was messed up. I soldered leads to my new transistors emittor, base, and case(gnd), then wired it into the car the way my diagram shows. The pin5 wire from the ecu shows 0vdc when off, and .05vdc when on. I have constant vdc to the coil + constant vdc to ecu+ correct vdc to ecu start 12v heres the problem - NO SPARK does anybody have any suggestion? are ther anyways to bypass/eliminate the tranisstor with an HEI and still use the stock ECU for the injectors? I've searched and searched but haven't figured it out yet. Any and all help would be great! Thanks again Brian PS. Any body near NE Quote Link to comment Share on other sites More sharing options...
afbrian13 Posted January 23, 2006 Author Share Posted January 23, 2006 I've officailly been through every post under this forum and haven't found any new info (unless i happened to miss it - i'm only human) what is the pin5 output voltage supposed to be? what could cause it to not be this? I have two ECU's with the same #s 0vdc in off, .05vdc in on coming off the distributor, which wire is the spark ( 6 times per revolution) output signal, that i could use with a different Ignition module? Any and all help would be great. Thanks, Brian Quote Link to comment Share on other sites More sharing options...
afbrian13 Posted January 24, 2006 Author Share Posted January 24, 2006 well, i pulled the distributor and spun it. I can hear the injectors ticking, but still don't get any spark. what is the VDC supposed to be from the ecu pin 5 when you spin the distributor? Quote Link to comment Share on other sites More sharing options...
JagdStealth Posted April 10, 2006 Share Posted April 10, 2006 Were you able to figure out your problem? I've replaced the coil, CAS and power transistor. I also checked for continuity for all of the wiring...but I get NO SPARK Quote Link to comment Share on other sites More sharing options...
getZ Posted April 10, 2006 Share Posted April 10, 2006 As far as getting rid of the transistor, the answer is no. At least not with the stock ecu unless you want to a few more modifications. I was unable to find a replacement transistor that worked right. Not to say it can be done, but the original transistor had part no to reference. I had a factory manual but I gave it away when I sold my turbo motor. I can't remember if it was a PNP or NPN transistor. Yes, there are different types and the wrong one won't work. A while back I wrote up quite a bit on "ignitor," if you do a search. Do not hook that coil up to a constant 12 volts, it will overheat! Quote Link to comment Share on other sites More sharing options...
JagdStealth Posted April 12, 2006 Share Posted April 12, 2006 I was hoping he simply got the car started... I have a brand new factory transistor (mounted on the coil bracket and all) and it didn't help me. Quote Link to comment Share on other sites More sharing options...
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