No spark. CCRM?

[Calypso]

Alright, I'm pretty sure it won't, but will a bad CCRM keep the plugs from getting spark? For some reason I'm not getting any spark and I'm pretty sure my CCRM is bad but I didn't think that would cause this. Anyway, does anyone else have any other ideas as to why I wouldn't be getting any spark? I've gone over all the grounds on the intake and all the bolts. Everything is tight. I've tried 2 different DIS modules and technically 1 coil, but this is a different coil than the one that was on the car when I hit the deer. Anybody got any suggestions?

Thanks

 

[WTFvolvo]

I don't know much about these things yet... but I lost spark when a DIS harness clip broke. But looks like you already got that covered. Good luck with the repair, what ever it may be.

 

[Storm-Chaser]

Are you getting a tach signal ?

 

[only1me]

I had a ccrm problem once , the ground wasn't making a good connection. Fixed the ground, and replaced the ccrm, and no problem since.

 

[Calypso]

Are you getting a tach signal ?

Well, actually when I turn the key to the on position the tach will raise up off the peg a little bit. That what you mean?

 

[Phoenix]

CCRM can get you a no-fuel situation. Not a no-spark.

 

[Calypso]

CCRM can get you a no-fuel situation. Not a no-spark.

see, that's what I thought, and that's what I'm getting... So I hotwired the fuel pump since my CCRM won't trigger it but I still have the no spark issue. So I get to try and track down every wire in the ignition system and hope they are all good. Well, hope that I find a problem that is easily fixed...

Any other suggestions as to why I'm not getting spark?

 

[only1me]

Don't know if this will help but diagrams for the 89-90 ,and the 91 sho.

 

[projectSHO89]

Alright, I'm pretty sure it won't, but will a bad CCRM keep the plugs from getting spark? ...<snip>....

Yes, but it's not particularly common to notice only a "no spark" condition caused by the IRCM module. You would actually have no spark, no fuel pump, and no computer power (no CEL).

Check IRCM pin 24 (red wire) for power when the key is turned to RUN or START.

If your CEL comes on properly when you turn the key on, the IRCM is not the problem.

Steve

 

[Calypso]

Alright. We're getting somewhere. I attached a wire directly from the positive terminal of the battery to pin 24 (the red one) and the fuel pump primes properly and the CEL is no longer dim... Not sure if there is spark yet or not. I tried starting it and it wouldn't start but that could have been because there may not have been enough fuel pressure.

 

[Calypso]

Still no freakin spark...

And anybody have any ideas why jumping that red wire helped, at least with the fuel pump and CEL and all that. There is a fusible link on that wire right by the CCRM but it looks fine... Any other reasons that wouldn't be getting power?

 

[Off Road SHO]

I don't know if I could trust a wiring diagram that shows the spark plugs connected to the DIS module and not the coil pack.

Try checking the voltage levels at the positive terminal of the battery using the CCRM base as the ground, that will tell you if the grounding wire coming out of the CCRM is grounded well back to the battery.

Steve; What have been up to lately?

Tom

 

[SHOZ123]

The last post in this thread has all the info you need to TS the ignition system.

http://www.shoforum.com/showthread.php?t=69573

 

[Calypso]

Also, keep in mind, this car hit a deer. Everything worked fine before that and now I have no spark and some sort of problem with the CCRM/power.

 

[Calypso]

Okay, does anybody have any idea if any of these connectors would be causing any of my problems? Or better yet, what do these connectors do?

This one is sitting right by the rear head/valve cover. I don't know if it's ever been connected.



This one I THINK goes to the cruise control, which was removed, so I'm not too worried if that's what this connector actually is.



This is the one I'm kinda confused about, but chances are it wasn't plugged in when I bought the car so who knows . (It's the one a little off-center to the right that you are looking straight into. Just to the right of the coil)

 

[Storm-Chaser]

No.

When you're turning the engine-over, the rpm on the tachometer should read ~300 -to- 400 rpm before the engine fires. This is one simple way to validate that you're getting a signal from the Crank Sensor. Since the engine isn't "firing", this is very easy to check.

You have checked the 30A under-hood fuse to the ECM, haven't you . . . ?

Well, actually when I turn the key to the on position the tach will raise up off the peg a little bit. That what you mean?

 

[SASHO91]

The first one is not used.
The second one looks to be the solenoid purge valve (not really needed..)
And I think the last one is the cruise control.

Check to see if your'e getting 12v (B+) at the Red/Grn wire on the coil pack. It's also on the CPS, CID, DIS, and one other thing IIRC.

 

[Calypso]

Yup. Got the damn thing fired up finally. I hotwired the red/green wire to the CCRM and it fired right up (well, I had that one hotwired and the CCRM power wired hotwired). SOOOO.... The car starts. Runs great. Everything is good, I just need to figure out why those wires don't have power.

And there is no underhood fuse-box on G1s apparently. They're all just fusible links, so that's kinda ***. But I guess I'll just try and trace all the fuse links I can find and see if they're all good (all of them I've found so far are good)...

But yeah, thank God this thing finally started up... Now I just need some power steering fluid, a new front motor mount (mine is pretty much gone. Found that out after I drove it) and an alignment and she'll be all good...

 

[SASHO91]

IIRC, the Red/Grn fuse link is off the starter solenoid on the fender.

So do I get a cookie? Glad you got it fired up.

 

[only1me]

Here are a few more,might help.