Code 41
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
Code 41
Hey guys...
I recently cured my "no start" issues with a new fuel pump, new MAF and new MAF Power and Burnoff relays. The car ran and drove fine for a few days, but now I'm back to not getting it to start. I get a code 41 with my code scanner..."Electronic Spark Control Timing Error". Any ideas on how to get me back on the road again?
Thanks...
I recently cured my "no start" issues with a new fuel pump, new MAF and new MAF Power and Burnoff relays. The car ran and drove fine for a few days, but now I'm back to not getting it to start. I get a code 41 with my code scanner..."Electronic Spark Control Timing Error". Any ideas on how to get me back on the road again?
Thanks...
Team Owner
Joined: Jan 2003
Posts: 20,292
Likes: 239
From: Summerland B.C. Canada
FSM says it could be an ECM ground problem. You may want to look at the ECM's grounds at block, just above oil filter. Be sure that the connections are clean and tight.
http://members.shaw.ca/corvette86/Code%2041.pdf
http://members.shaw.ca/corvette86/Code%2041.pdf
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
FSM says it could be an ECM ground problem. You may want to look at the ECM's grounds at block, just above oil filter. Be sure that the connections are clean and tight.
http://members.shaw.ca/corvette86/Code%2041.pdf
http://members.shaw.ca/corvette86/Code%2041.pdf
Thanks for the link! Would you by any chance have a pic of that, or know where I might find one? Is it something I can access from above/on top? Any kind of multimeter tests I should do?
Thanks for your reply!
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
[QUOTE=AGENT 86;1579853888]
I would imagine it would be easier from below.
You could follow the flow chart and check for ground at ECM connector.
Hi Agent86...
Is this the ground I should be looking for? I can see how it will probably be easier to get to from underneath.
Do I just clean it and check it for good contact? Anything I need to check with a meter while I am down there?
Know where I could view the "flow chart"? Also, can you tell me where I might find the ECM connector you mentioned?
Thanks for the reply!
I would imagine it would be easier from below.
You could follow the flow chart and check for ground at ECM connector.
Hi Agent86...
Is this the ground I should be looking for? I can see how it will probably be easier to get to from underneath.
Do I just clean it and check it for good contact? Anything I need to check with a meter while I am down there?
Know where I could view the "flow chart"? Also, can you tell me where I might find the ECM connector you mentioned?
Thanks for the reply!
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
Melting Slicks
Joined: Nov 2007
Posts: 2,830
Likes: 147
From: Gainesville FL
Hey guys...
I recently cured my "no start" issues with a new fuel pump, new MAF and new MAF Power and Burnoff relays. The car ran and drove fine for a few days, but now I'm back to not getting it to start. I get a code 41 with my code scanner..."Electronic Spark Control Timing Error". Any ideas on how to get me back on the road again?
Thanks...
I recently cured my "no start" issues with a new fuel pump, new MAF and new MAF Power and Burnoff relays. The car ran and drove fine for a few days, but now I'm back to not getting it to start. I get a code 41 with my code scanner..."Electronic Spark Control Timing Error". Any ideas on how to get me back on the road again?
Thanks...
Code 41 = Cylinder Select Error Circuit (1985-1991)
http://forums.corvetteforum.com/c4-t...t-86-vert.html
Last edited by 3D-Aircrew; Jan 28, 2012 at 02:33 PM. Reason: added info
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Team Owner
Joined: Jan 2003
Posts: 20,292
Likes: 239
From: Summerland B.C. Canada
[QUOTE=racerseks;1579854318]
I would imagine it would be easier from below.
You could follow the flow chart and check for ground at ECM connector.
Hi Agent86...
Is this the ground I should be looking for? I can see how it will probably be easier to get to from underneath.
Do I just clean it and check it for good contact? Anything I need to check with a meter while I am down there?
Know where I could view the "flow chart"? Also, can you tell me where I might find the ECM connector you mentioned?
Thanks for the reply!
Yes, that is the main ground with all the ECM's grounds. You could clean each terminal and reinstall.
The flow chart is the diagnostic chart included in the code 41 link, that I gave you in my first post.
I would imagine it would be easier from below.
You could follow the flow chart and check for ground at ECM connector.
Hi Agent86...
Is this the ground I should be looking for? I can see how it will probably be easier to get to from underneath.
Do I just clean it and check it for good contact? Anything I need to check with a meter while I am down there?
Know where I could view the "flow chart"? Also, can you tell me where I might find the ECM connector you mentioned?
Thanks for the reply!
The flow chart is the diagnostic chart included in the code 41 link, that I gave you in my first post.
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
You didn't say what year your car is but this happend to my '86 which turned out to a malfunctioning PROM:
Code 41 = Cylinder Select Error Circuit (1985-1991)
http://forums.corvetteforum.com/c4-t...t-86-vert.html
Code 41 = Cylinder Select Error Circuit (1985-1991)
http://forums.corvetteforum.com/c4-t...t-86-vert.html
My car is an '86 as well. Thanks very much for posting that. I'll read through it...
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
[QUOTE=AGENT 86;1579858732]
Thanks Agent86...
I gotcha...I'll read through that again.
I gotcha...I'll read through that again.
