Coil Driver
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,013
Likes: 0
From: Pa
Coil Driver
It seems that no one seems to be having any problems with their coil and driver on this forum except for me, at least I think.
Well, car wouldn't run. Replaced Optispark. Ran for one day Still not running. Missed Carlisle. :mad
Now I get, I believe, a code 52. Manual says a code 52 turns off fuel system, clear code, crank on car for fifteen seconds, code should reset, if not, dreaded intermitent problem.
Well, code did not reset and car doesn't start. Seems like it tries a little, but will not run. :confused:
You guys know your stuff, what do you think???
Any help greatly appreciated :seeya
Well, car wouldn't run. Replaced Optispark. Ran for one day Still not running. Missed Carlisle. :mad
Now I get, I believe, a code 52. Manual says a code 52 turns off fuel system, clear code, crank on car for fifteen seconds, code should reset, if not, dreaded intermitent problem.
Well, code did not reset and car doesn't start. Seems like it tries a little, but will not run. :confused:
You guys know your stuff, what do you think???
Any help greatly appreciated :seeya
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Re: Coil Driver (Quasar92Blue)
I.C. engines require 3 things to start and run. Air, fuel, spark. Do you have spark? Is it at the right time? Are the injectors spraying fuel? Check for fuel pressure during cranking. Is the air circuit to the throttle body open?
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,013
Likes: 0
From: Pa
Re: Coil Driver (Quasar92Blue)
Well, I can smell fuel, but I'm not sure of the pressure. I'm pretty sure the spark is intermitent. I actually took out my computer to check the wires to the coil driver and everything checked out okay. It looks like a real bear to get the coil driver out of the thing because of the power steering line. Is there even a way to check out the driver? I'm getting tired of spending money and still having a car that doesn't run. :U
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Re: Coil Driver (Quasar92Blue)
If you are sure that your spark is intermittent, then you may have a defective optispark, but I am not familiar with 92's or even if they have optisparks. By
coil driver, do you mean the spark control module in the distributor? If so, some auto parts places will test them for you. If you can smell raw fuel in the exhaust while someone is cranking, then you likely have fuel being delivered.
You need some tools to diagnose this. A fuel pressure gauge to see if the fuel runners have the correct pressure , a timing light to see if you have high voltage and at the right time and consistent. In a non optispark C4, the distributor has a pickup coil, a spark control module, a spark coil, a rotor , and a distributor cap , all or some or one of which can prevent spark and therefore
starting. Each of these components needs to be checked to determine if they are contributors to the problem.
coil driver, do you mean the spark control module in the distributor? If so, some auto parts places will test them for you. If you can smell raw fuel in the exhaust while someone is cranking, then you likely have fuel being delivered.
You need some tools to diagnose this. A fuel pressure gauge to see if the fuel runners have the correct pressure , a timing light to see if you have high voltage and at the right time and consistent. In a non optispark C4, the distributor has a pickup coil, a spark control module, a spark coil, a rotor , and a distributor cap , all or some or one of which can prevent spark and therefore
starting. Each of these components needs to be checked to determine if they are contributors to the problem.
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 1,013
Likes: 0
From: Pa
Re: Coil Driver (jfb)
(The 92 is the first year of the LT1 and Optispark. The coil mounts on the right head, and for some reason, looks really hard to take off.)
Man, do I wish I had a normal distributer. I would throw it out in a heartbeat for an msd. When it did run for a day, it ran great. Started up several times and everything. Next day, nothing, except a code 52. :eek:
Oh well. I know that the spark modules in the older hei's would shut down the motor in the middle of the road. I just wonder if the module next to the coil does about the same thing? I think I saw an aftermarket replacement to change out the whole thing. Hmmm
[Modified by Quasar92Blue, 4:01 AM 8/29/2001]
Man, do I wish I had a normal distributer. I would throw it out in a heartbeat for an msd. When it did run for a day, it ran great. Started up several times and everything. Next day, nothing, except a code 52. :eek:
Oh well. I know that the spark modules in the older hei's would shut down the motor in the middle of the road. I just wonder if the module next to the coil does about the same thing? I think I saw an aftermarket replacement to change out the whole thing. Hmmm
[Modified by Quasar92Blue, 4:01 AM 8/29/2001]
