Alex Annapolis

Car will not start. Hooked a NOID light to the wire connected to the injector and it does NOT light up when cranking the engine. All the fuses in the main box were fine, any others I should check? Does anyone know what else would cause this?

jfb

Why don't you tell us what year Corvette you are talking about?

Alex Annapolis

oops
1990 6-spd
thanks

jfb

The noid light goes across the plug that plugs into an injector. Use an ohmeter to check both INJ fuses. If ok, then check for spark during cranking because the ECM requires distributor pulses to then pulse the injectors. No spark, then check for distributor pulses which is best done with an oscilloscope.

FICINJECTORS

on a 90 if you have a shorted injector it will shut down the ECU's injector driver. Ohm check the injectors also, if any are below 10 keep the plug off that injector and see if it starts. 90 injectors should have 16ohms of resistance.

Alex Annapolis

when we were testing the other injectors with the light, the car started. It ran for about a minute but only at idle. As soon as I would give it gas the car would die. While it was running we tested the same injector that didnt light before, and then it did light, although faint. Then it wouldnt start at all again. I was planning on looking for a loose ground, my mechanic thinks its the computer or relay, but I will check the injectors and distributor as well
thanks

Alex Annapolis

its getting spark, and will start when I spray starter fluid in the throttle body. Also, for whatever reason, it started earlier and ran fine for about 5 min then completely died again

corvettec4

how about vats it locks out the injectors

engle1147

Check the injector resistance as Jon (F.I.C. aka Fuel Injector Connection) suggested. They are most likely the no start culprit.

floridamale

Jon is the injector Guru (From Wikipedia a person who is regarded as having great knowledge, wisdom and authority in a certain area, and who uses these abilities to guide others) he will get you hooked up