C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Engine codes Service Engine Soon 43 & 52 ??

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Old Aug 11, 2009 | 06:28 AM
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Default Engine codes Service Engine Soon 43 & 52 ??

Hi Guys

I have the light SES switched on permanently by driving for the first time.
I followed the method to find the codes and Here they are:
43 : Electronic Spark Control
52 : Fuel Calpak Missing

I have verified connectors and open PCM for look the calpak and put sillicon but I always have the problem.
Besides, my C4 lost of its power, that feels easily.
Thank you for your help

Patrick

Last edited by Macfly; Aug 11, 2009 at 06:31 AM.
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Old Aug 13, 2009 | 06:58 PM
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From: Franklin indiana
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I've had code 52 also, I think it's an oil temp problem on Corvettes.
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Old Aug 13, 2009 | 08:09 PM
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0Paul Ruggeri
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From: Carmichael ca
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Code 43 is most commonly a bad knock sensor. Code 52 is most commonly a bad oil temp sensor. You need to look at scan data to see the readings from these sensors.

Bonne chance, Paul

Last edited by Paul Ruggeri; Aug 13, 2009 at 08:11 PM.
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Old Aug 14, 2009 | 03:40 AM
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Thx a lot my friends I will watching this, because i'm thinking my ECM is out of order
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Old Aug 18, 2009 | 08:47 PM
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Originally Posted by Macfly
Hi Guys

I have the light SES switched on permanently by driving for the first time.
I followed the method to find the codes and Here they are:
43 : Electronic Spark Control
52 : Fuel Calpak Missing

I have verified connectors and open PCM for look the calpak and put sillicon but I always have the problem.
Besides, my C4 lost of its power, that feels easily.
Thank you for your help

Patrick
Patrick, I also have service engine soon. where can I go to determine WHAT code or codes are the cause? thanks
JD
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Old Aug 19, 2009 | 03:53 AM
  #6  
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Originally Posted by JD94C4
Patrick, I also have service engine soon. where can I go to determine WHAT code or codes are the cause? thanks
JD
Hi JD !

I find this process, i think it can help you

http://www.corvettebuyers.com/c4vettes/codes.htm

Patrick
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Old Aug 19, 2009 | 07:50 AM
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thanks Patrick. I will look into that.. my car seems to be running great so it cant be that serious, just the annoying light
JD
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