Will not start 1986 GN

[fc227]

Greetings all,

Last week on the way home the GN start throwing a code 41 (Cam sensor) and when I shut it off . It would not start again.

Well, replaced the cam sensor , ECU, Ignition module .

I do have 12 volts to the crank and cam sensors and I do have a signal out from both , But I have no tach signal and the coil is not firing (all this measured at the Ignition module with a DVM). Also have power to the ignition module. Unless the ignition module I got was bad, It was used.

Any input welcome and thank you

 

[SHADOWII]

Have you tried re-installing the old ign. module to verify no output?

 

[fc227]

Have you tried re-installing the old ign. module to verify no output?

Not Yet, But it is doing the exact same thing. I'm going to probe @ the ECU to make sure I have the Signals there. I thinking broken wire some where.

I am going to borrow a Scope from work Monday and get more accurate readings

 

[fc227]

Just went out to the car , I do see the analog tach moving when cranking , But the scan master shows "000" , So I do have the coil firing . Has to be the injectors not firing

 

[dynoman]

Do you have a noid light to check injector pulse ? Also , how is fuel pressure ?

 

[fc227]

Do you have a noid light to check injector pulse ? Also , how is fuel pressure ?

Fuel pressure 43# , Have not checked injectors for signal yet

 

[fc227]

Fuel pressure 43# , Have not checked injectors for signal yet

And I use a DVM

 

[fc227]

It running again ! Cam sensor position moved , was triggering early and I had a bad ignition module .

 

[SHADOWII]

Good to hear, "Happy motoring!!!"