Anyone here a C4 guy?

Avatard · 08-08-2010, 12:38 AM

I have some flaky shit going on with my '94 C4.

It's a later 94, and thus actually is one that has an ODBII connector (thank goodness), and it's coding "36 - ignition system problem loss of high res pulse signal"...which would suggest a bad opti...but the fucking thing is kinda acting stupid all around...like occasionally throwing other codes, lighting the ASR Service light, and even the fucking A/C went to the zoo for a bit, until the car was restarted.

It spits, sputters, and acts up...and then the "check engine" light comes on, and she runs fine

I think it may be a bad wire, or connector, or maybe my ECM is hosed.

Anyone had any shit like this?

TommyHotWheel · 08-08-2010, 01:03 AM

Run through the wiring harness and check all of the sensors. I seem to remember my uncle having the same sort of trouble and he had some wiring issues. Dont quote me, cuz I am not positive. I will see if I can get in touch with him tomorrow.

Avatard · 08-08-2010, 03:48 AM

Thanks, Tom.

Particle Man · 08-08-2010, 10:57 AM

I clicked on this thinking you wanted something blown up

defector · 08-08-2010, 11:08 AM

Faulty MAF? IIRC, that was a fairly common problem.

Adeptus_Minor · 08-08-2010, 11:22 AM

Tracy (GRex) could probably provide some insight as well.
Oh he of the cursed C4.

Particle Man · 08-08-2010, 11:59 AM

Quote:

Originally Posted by Adeptus_Minor

Tracy (GRex) could probably provide some insight as well.
Oh he of the cursed C4.

I was deliberately not going there

goof2 · 08-08-2010, 12:15 PM

I don't know about the C4 specifically but in my experience when a lot of different things are going wrong like what you describe you may want to check your grounds. A faulty ground can cause all sorts of seemingly unrelated problems. Check them all and clean or replace where necessary before dumping a bunch of money in to the car.

Avatard · 08-08-2010, 04:28 PM

Quote:

Originally Posted by Particle Man

I clicked on this thinking you wanted something blown up

If I can't diagnose the fucking thing, that just may be an option...

Cutty72 · 08-08-2010, 10:18 PM

Quote:

Originally Posted by Particle Man

I clicked on this thinking you wanted something blown up

Me too. Though that could be the ultimate answer.

08-08-2010, 12:38 AM	#1
Avatard Crotch Rocket Curmudgeon Join Date: Nov 2008 Location: Here to integrity Moto: Li'l red baby Ninja Posts: 7,482	Anyone here a C4 guy? I have some flaky shit going on with my '94 C4. It's a later 94, and thus actually is one that has an ODBII connector (thank goodness), and it's coding "36 - ignition system problem loss of high res pulse signal"...which would suggest a bad opti...but the fucking thing is kinda acting stupid all around...like occasionally throwing other codes, lighting the ASR Service light, and even the fucking A/C went to the zoo for a bit, until the car was restarted. It spits, sputters, and acts up...and then the "check engine" light comes on, and she runs fine I think it may be a bad wire, or connector, or maybe my ECM is hosed. Anyone had any shit like this? __________________ Insert free thought here.

08-08-2010, 01:03 AM	#2
TommyHotWheel Imported from Detroit Join Date: Nov 2008 Location: Michigan Moto: 2001 Suzuki TL1000R Posts: 989	Run through the wiring harness and check all of the sensors. I seem to remember my uncle having the same sort of trouble and he had some wiring issues. Dont quote me, cuz I am not positive. I will see if I can get in touch with him tomorrow. __________________ Cry Havok! And let slip the hogs of war!

08-08-2010, 03:48 AM	#3
Avatard Crotch Rocket Curmudgeon Join Date: Nov 2008 Location: Here to integrity Moto: Li'l red baby Ninja Posts: 7,482	Thanks, Tom. __________________ Insert free thought here.

08-08-2010, 11:08 AM	#5
defector My balls, your chin Join Date: Nov 2008 Location: The desert of Az Moto: 929, SV650, YZ250 Posts: 1,917	Faulty MAF? IIRC, that was a fairly common problem. __________________ Reading this signature may give you special powers, including the ability to run through walls. You should try it immediately.

08-08-2010, 11:22 AM	#6
Adeptus_Minor Hopster Join Date: Nov 2008 Location: Austin, TX Moto: 2009 Buell 1125R Posts: 4,743	Tracy (GRex) could probably provide some insight as well. Oh he of the cursed C4. __________________ “Well, obviously before; after was all gendarmes and dick stitches.”

08-08-2010, 10:57 AM	#4
Particle Man Custom User Title Join Date: Nov 2008 Location: Central NY Moto: 2003 SV650S Posts: 14,959	I clicked on this thinking you wanted something blown up

08-08-2010, 12:15 PM	#8
goof2 AMA Supersport Join Date: Feb 2009 Posts: 4,756	I don't know about the C4 specifically but in my experience when a lot of different things are going wrong like what you describe you may want to check your grounds. A faulty ground can cause all sorts of seemingly unrelated problems. Check them all and clean or replace where necessary before dumping a bunch of money in to the car.