I just got done installing '87 TPI and can't get it to run... I put in a new harness with all new connectors, relays and fuse block. I bought this on ebay for $290 @ http://cgi.ebay.com/ebaymotors/TPI-M...item1e617eec2a
great deal!!!!!!!!! I also bought an ecm ...165 from this man in Colorado for $65. After installing this harness I was unable to get spark with engine cranking. I have a remote starter switch so I was using this to check for spark without pulling a plug, but instead using an extra spark plug on one of the plug wires pulled off a plug in the engine. No spark with ignition on and remote starter switch. I tested the distrib. for power and got 12.4 volts with the ignition turned on. I also tested the distrib. power wire with ignition turned off and no voltage... I made sure all other connectors were plugged in and unpluged the tach connector just to make sure this wasn't the problem. STILL NO SPARK!!! I check all the wires I ran for new wiring harness and fuses, all good. Then I decided to test with remote starter switch again hooked up to the battery and S termanal on starter relay. SPARK!!!!! and engine started to run for 1/2 sec then died. Could not get it to start. I went to turn off the ignition inside the truck and holy moly, the key wasn't even in it!!!! So I turned on the key and tried again, NO SPARK!!! WOW, I only get spark when the key is turned off!!!! But the distrib. is getting power with ignition on but nothing when ignition off. What gives? Please help me!!!!!!!

 

The engine turns over though when you try to start it with the key correct?

 

Ignition coil?

 

Plug the tach connecter in the coil. I don't know for a fact, but it may complete the circuit. Your remote starter may just be shorting the starter, thus cranking the motor over with no spark...