Code 36 help
Racer
Joined: Apr 2011
Posts: 367
Likes: 7
From: Congupna Victoria
OK,
next installment:
inserted probes into terminal C and D of the MAF.
Attached two Voltmeters to check:
1. if 12V is indeed being sent to the MAF
2. What is the voltage getting sent to the ECM.
I took videos immediately after engine shut down
I'm confident that #1 is working as I can see the MAF burn off.
Here is the video of #1.
So all shows good. As expected
Next is Terminal C video.
Was lucky to get the MAF and meter in the one shot, so you can see it happening:
looks funky....expect I'm needing a new MAF?
comments?
next installment:
inserted probes into terminal C and D of the MAF.
Attached two Voltmeters to check:
1. if 12V is indeed being sent to the MAF
2. What is the voltage getting sent to the ECM.
I took videos immediately after engine shut down
I'm confident that #1 is working as I can see the MAF burn off.
Here is the video of #1.
Next is Terminal C video.
Was lucky to get the MAF and meter in the one shot, so you can see it happening:
looks funky....expect I'm needing a new MAF?
comments?
Last edited by puzzigully; Feb 20, 2015 at 05:06 AM.
Thread Starter
Racer
Joined: Sep 2011
Posts: 400
Likes: 5
From: Bakersfield Ca
OK,
next installment:
inserted probes into terminal C and D of the MAF.
Attached two Voltmeters to check:
1. if 12V is indeed being sent to the MAF
2. What is the voltage getting sent to the ECM.
I took videos immediately after engine shut down
I'm confident that #1 is working as I can see the MAF burn off.
Here is the video of #1.
http://youtu.be/FZZJwR3p474
So all shows good. As expected
Next is Terminal C video.
Was lucky to get the MAF and meter in the one shot, so you can see it happening:
http://youtu.be/9ds5MHZN8es
looks funky....expect I'm needing a new MAF?
comments?
next installment:
inserted probes into terminal C and D of the MAF.
Attached two Voltmeters to check:
1. if 12V is indeed being sent to the MAF
2. What is the voltage getting sent to the ECM.
I took videos immediately after engine shut down
I'm confident that #1 is working as I can see the MAF burn off.
Here is the video of #1.
http://youtu.be/FZZJwR3p474
So all shows good. As expected
Next is Terminal C video.
Was lucky to get the MAF and meter in the one shot, so you can see it happening:
http://youtu.be/9ds5MHZN8es
looks funky....expect I'm needing a new MAF?
comments?
Last edited by AJ123; Feb 20, 2015 at 11:31 AM.
Racer
Joined: Apr 2011
Posts: 367
Likes: 7
From: Congupna Victoria
I'll pre-order the MAF from O'Rriellys as I'm heading over on Sunday, so will pick that up and bring it back to Oz (fingers crossed it fixes it)
I'm curious to know why the MAf isnt sending a signal back to the ECM.
I wonder if it's an internal failure within the MAF itself.
Be good if there's an easy check you could do to determine if the MAF is faulty in this manner...
There must be a problem/disconnect within the circuit that once the burn off is happening, it doesn't send out the info for some reason.
Anyone seen an internal circuit diagram for a 1987 Corvette MAF?
Or even a MAF with a burn off circuit??
I'm curious to know why the MAf isnt sending a signal back to the ECM.
I wonder if it's an internal failure within the MAF itself.
Be good if there's an easy check you could do to determine if the MAF is faulty in this manner...
There must be a problem/disconnect within the circuit that once the burn off is happening, it doesn't send out the info for some reason.
Anyone seen an internal circuit diagram for a 1987 Corvette MAF?
Or even a MAF with a burn off circuit??
Thread Starter
Racer
Joined: Sep 2011
Posts: 400
Likes: 5
From: Bakersfield Ca
I'll pre-order the MAF from O'Rriellys as I'm heading over on Sunday, so will pick that up and bring it back to Oz (fingers crossed it fixes it)
I'm curious to know why the MAf isnt sending a signal back to the ECM.
I wonder if it's an internal failure within the MAF itself.
Be good if there's an easy check you could do to determine if the MAF is faulty in this manner...
There must be a problem/disconnect within the circuit that once the burn off is happening, it doesn't send out the info for some reason.
Anyone seen an internal circuit diagram for a 1987 Corvette MAF?
Or even a MAF with a burn off circuit??
I'm curious to know why the MAf isnt sending a signal back to the ECM.
I wonder if it's an internal failure within the MAF itself.
Be good if there's an easy check you could do to determine if the MAF is faulty in this manner...
There must be a problem/disconnect within the circuit that once the burn off is happening, it doesn't send out the info for some reason.
Anyone seen an internal circuit diagram for a 1987 Corvette MAF?
Or even a MAF with a burn off circuit??
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Race Director
Joined: Apr 2002
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From: Anaheim CA
Racer
Joined: Apr 2011
Posts: 367
Likes: 7
From: Congupna Victoria
Thanks John,
I was looking for some more detail that that diagram....more about the circuit of how the output is wired internally to take info from two sources (technically the same source, but different inputs to that source) and send to the ECM
I was looking for some more detail that that diagram....more about the circuit of how the output is wired internally to take info from two sources (technically the same source, but different inputs to that source) and send to the ECM
Thread Starter
Racer
Joined: Sep 2011
Posts: 400
Likes: 5
From: Bakersfield Ca
Thread Starter
Racer
Joined: Sep 2011
Posts: 400
Likes: 5
From: Bakersfield Ca
Racer
Joined: Apr 2011
Posts: 367
Likes: 7
From: Congupna Victoria
Me too!
I'm in California right now, return on Monday, can't wait to fit the replacement I purchased from O'Riellys and see if it solves the problem...
Actually went to a auto salvage yard today to try to find one on a wreck, wasnt any thing there.....
Fingers crossed the new one works
I'm in California right now, return on Monday, can't wait to fit the replacement I purchased from O'Riellys and see if it solves the problem...
Actually went to a auto salvage yard today to try to find one on a wreck, wasnt any thing there.....
Fingers crossed the new one works
Thread Starter
Racer
Joined: Sep 2011
Posts: 400
Likes: 5
From: Bakersfield Ca
Me too!
I'm in California right now, return on Monday, can't wait to fit the replacement I purchased from O'Riellys and see if it solves the problem...
Actually went to a auto salvage yard today to try to find one on a wreck, wasnt any thing there.....
Fingers crossed the new one works
I'm in California right now, return on Monday, can't wait to fit the replacement I purchased from O'Riellys and see if it solves the problem...
Actually went to a auto salvage yard today to try to find one on a wreck, wasnt any thing there.....
Fingers crossed the new one works
