77_280Z Posted October 11, 2010 Report Share Posted October 11, 2010 alright here is the problem i am running into, iv seen and read many posts about it but unable to find any answers on how to really fix it. iv got a 77 280z, im having the problem to where none of my injectors are pumping except for my cold start injector. the car will start and idle forever pretty much but i g to rev it itll only goto about 1500 to 200 rps than itll start dieing and backfire mildly.. im pretty much stumped on whats wrong with it. iv cleaned all the injector connections and everything in the dist. iv used a test light on all the injectors and the only one that shows any power is the cold start one, and iv tried multiple tests on them still no power... it could just be me and i may be way off but any help is gratefull. and anyone who is willing to lend a hand ill supply the beer! :cool: Quote Link to comment
Skib Posted October 11, 2010 Report Share Posted October 11, 2010 my first thought would be the ECU? for some reason its not telling the injectors to fire. Quote Link to comment
datsunaholic Posted October 11, 2010 Report Share Posted October 11, 2010 ECU. Sounds like it's stuck in limp home mode, that happens when something goes wrong. I had nothing but problems with my '77. Thermal switch went bad, made the cold-start valve stay open. Or the AFM went bad, forcing limp-home or worse constant backfiring when it went lean. ECU went out 6 times in 2000 miles, always stuck in limp-home mode. Quote Link to comment
Skib Posted October 11, 2010 Report Share Posted October 11, 2010 whats the sticker on the outside your ECU read? to bad your all the way in camas, Id come by and lend a hand Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 ECU. Sounds like it's stuck in limp home mode, that happens when something goes wrong. I had nothing but problems with my '77. Thermal switch went bad, made the cold-start valve stay open. Or the AFM went bad, forcing limp-home or worse constant backfiring when it went lean. ECU went out 6 times in 2000 miles, always stuck in limp-home mode. dont tell me that.... lol whats the sticker on the outside your ECU read? to bad your all the way in camas, Id come by and lend a hand the ecu that was hooked up numbers are a11-600 000k the other ecu that came with the cars number is a11-601 000 the other weird thing is that the wires from the black connector for the injector relay all show up with no power but most the ones on the white clip show power.... almost forgot the ecu that was hooked up to begin with is also a nissan reman. unit. Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 oh i also stumbled across alose valve cover.. haha went to change the gasket and found the bolts finger tight... Quote Link to comment
Skib Posted October 12, 2010 Report Share Posted October 12, 2010 oh i also stumbled across alose valve cover.. haha went to change the gasket and found the bolts finger tight... oh boy...... Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 oh boy...... your tellin me..... Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 well hopefully i can figure this out, how many prongs in the connector to the ecu should have power with just the key on? i only found one with power.. and if someone has a good known ecu that will work on this car please let me know (eaither for me to barrow or to buy) thanks so far guys.. Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 Need to barrow a ecu. If it fixes my problem I will buy it if the price is right. I can meet someone pretty much anywhere pdx area vancouver area exc. If someone has one and is willing to let me barrow or buy it from them let me know. Thanks. Quote Link to comment
Skib Posted October 12, 2010 Report Share Posted October 12, 2010 IV got 2 you can try, I work in Gladstone and your welcome to pick them up from me during the week Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 bit of a drive but ill do it just let me know a good time, and a place to meet u at i work pretty much for myself so anytime is good for me. Quote Link to comment
77_280Z Posted October 12, 2010 Author Report Share Posted October 12, 2010 also just ran a test on all injectors with a noid light, nothing on any of them. Quote Link to comment
77_280Z Posted November 20, 2010 Author Report Share Posted November 20, 2010 still unable to figure out whats going on with my car, anyone have any ideas lt me know or if anyone wants to give me a hand with it sometime let me know, anything is helpful im about of monety and paitance with it... Quote Link to comment
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