No Spark!

[Conover]

Con, I always assume that the main power has been checked..
Just turning the power on and off will trigger a spark @ the coil, if the power supply and ground are valid.

Not talking about the power, I'm talking about how to check for actual signal at the coil, same applies for electronic fuel injectors and many other parts. You can tell if there is a square wave present on the signal wire with a simple test light hooked to the positive side of the battery.

[Flyinglizard]

SSB or SSC for you..

[jimbbski]

Further update.

I started the car yesterday and it ran. Once it warmed up a bit it idled good. When I went to rev it the engine speed came up but it seemed like it was running lean, sputtering, missing, etc. This whole thing is just plain weird.

I have a head gasket let go, I change the engine and now all these problems! The engine was running fine before. I just don't get it.

There is nothing wrong with the engine mechanically, I'm using the same injectors from the other engine as they were all new. I have to assume that there is still something wrong electrically.

When the head gasket let go some oil & water was blown back through the intake system as the air filter was soaked with this mixture. If the air meter moves freely, and it does, how could the air meter cause these issues with smooth running? Especially since the old engine ran very well before the gasket went. I didn't disconnected any fuel lines to do the engine swap other then the fuel feed line to the filter and then only after I had problems with it not running correctly.

[Flyinglizard]

Check the cam timing, at both points,( cam to cam and cam to crank.)
MM

[jimbbski]

Check the cam timing, at both points,( cam to cam and cam to crank.)
MM

That is all good. The head was removed from the engine before I installed the engine. This engine sat for 5+ years so I wanted to check it out first. I then installed the head with the cams rotated to their correct TDC marks with the engnine at TDC too.

The issue is in the fuel injection, the fuel mixture at anything above idle is off. I have not adjusted the CO screw which was suggested to me to do by someone off line. I want to verify that all other systems are working correctly first before I do that.

[Lael Cleland]

check the wires under the boots @ the potentiometer & DPR.. they also break... and vac hose to knock box..