taylor76zharris Posted June 24, 2012 Share Posted June 24, 2012 Alright guys im having a really tough time getting spark, ive checked and double checked every ground and every splice for the cause but still nothing. The car is a 76 280 and the motor is the l28et out of an 81. It was running untill i went around and redid the wiring the right way. Could it be the ECU? the little green light is on so i know its getting power but the coil isnt sending spark to the plugs. Any ideas? Thanks Quote Link to comment Share on other sites More sharing options...
NewZed Posted June 24, 2012 Share Posted June 24, 2012 If the coil is getting power at the terminals, you can test for spark with a ground wire on the negative post. If it sparks, then figure out why the ignitor is not igniting, either it's not getting a signal from the ECU or it's broken. The 81 FSM has test procedures for the 81 turbo components also if you're not really sure how the spark is created. Quote Link to comment Share on other sites More sharing options...
loy Posted June 25, 2012 Share Posted June 25, 2012 Make sure your ignition source stays on while cranking. Quote Link to comment Share on other sites More sharing options...
taylor76zharris Posted June 25, 2012 Author Share Posted June 25, 2012 I dont think it doest stay on while cranking but ill double check. I even did the HEI swap and still nothing. Im so confused.. Quote Link to comment Share on other sites More sharing options...
NewZed Posted June 26, 2012 Share Posted June 26, 2012 Did it work before the HEI swap (probably not, I assume)? How did you do the HEI swap, if you're working with an 81 turbo ECU in a 76 car? Did you use skittle's instructions from zcar.com? Have you used a volt/ohm meter on anything yet? That's what you want to start doing. Then you'll know. A couple of simple measurements will tell you a lot. You can get a cheap meter for $6 at Harbor Freight, if you don't have one. Quote Link to comment Share on other sites More sharing options...
taylor76zharris Posted June 26, 2012 Author Share Posted June 26, 2012 Well the car is actually a 78, i was mistaken. And yes i used Skittle's info to do the swap. I have a multimeter but im not to good with it. If you could tell mw how to test with it or what setting to put it on that would be awesome! Quote Link to comment Share on other sites More sharing options...
NewZed Posted June 26, 2012 Share Posted June 26, 2012 Can't help you with that. That's a basic for automotive work. A skill well worth learning. I'm positive that there are many youtube videos on how to use one. And videos on how to check a coil, check for spark, etc. No offense. Good luck. http://www.youtube.com/results?search_query=using+a+multimeter&oq=using+a+multimeter&aq=f&aqi=g7g-m1&aql=&gs_l=youtube.3..0l7j0i5.402.4845.0.5919.18.17.0.1.1.0.208.2189.5j11j1.17.0...0.0.2mgq8y_QcIc http://www.youtube.com/results?search_query=checking+spark&oq=checking+spark&aq=f&aqi=g4&aql=&gs_l=youtube.3..0l4.20377.26531.0.26898.20.16.2.2.2.1.208.2173.3j12j1.16.0...0.0.Nz2pV8A2lu0 http://www.youtube.com/results?search_query=testing+a+coil&oq=testing+a+coil&aq=f&aqi=g2&aql=&gs_l=youtube.3..0l2.12178.14763.0.16115.14.14.0.0.0.0.171.1344.8j6.14.0...0.0.BN1_7HX2Fwk Quote Link to comment Share on other sites More sharing options...
taylor76zharris Posted June 27, 2012 Author Share Posted June 27, 2012 none taken, thanks for the links. One more thing, can you use an ECU from a 82 l28et if its an manual on my motor (81 l28et)? Quote Link to comment Share on other sites More sharing options...
S30Turbo Posted August 17, 2012 Share Posted August 17, 2012 I have the same spark problem. It turn on when I did the first start and then I cleaned up the wires ruling them Under the fuel rail n connecting the maf n doing the intercooler pluming and no spark. I also have the HEI on mine. With my 81 l28et swap on my 75 280z. Quote Link to comment Share on other sites More sharing options...
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