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gold28
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August 2002
Re: ECU Compatibility across models ? Tech advice needed. Fri, 29 April 2005 03:44 Go to previous messageGo to previous message
the cel will only light up if the ecu reads an out of limits reading.

Think of it like a low oil pressure light. You may have low oil volume for months before triggering the pressure light. That doesn't mean your motor is in good health though.

You may have a dicky o2 sensor or temp sensor or both. These could cause it to run rich but they may still be within the ecu limits.




Also the engine packages for each car vary with exhaust, inlet tuneing, cams etc depending on the vehicle weight, performance and packaging restrictions. Hence fuel and ignition mapping will vary for individual models.

Point in case, I am currently running a gen2 long block with gen3 everything else. because the cams are different, the ecu will quite happily let it run with 19psi boost. Now I don't think Toyota would have considered that a "durable" limit for a gen2 motor. With the Gen3 block, the same ecu would only support 16psi before screaming help.
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SubjectPosterDate
Read Message   ECU Compatibility across models ? Tech advice needed. ra23celicaWed, 27 April 2005 03:40
Read Message   Re: ECU Compatibility across models ? Tech advice needed. CrUZsidaWed, 27 April 2005 04:45
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaWed, 27 April 2005 05:07
Read Message   Re: ECU Compatibility across models ? Tech advice needed. CrUZsidaWed, 27 April 2005 05:11
Read Message   Re: ECU Compatibility across models ? Tech advice needed. dravenWed, 27 April 2005 05:14
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaWed, 27 April 2005 05:27
Read Message   Re: ECU Compatibility across models ? Tech advice needed. dravenWed, 27 April 2005 05:48
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ZZT231Wed, 27 April 2005 05:50
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaWed, 27 April 2005 06:00
Read Message   Re: ECU Compatibility across models ? Tech advice needed. CrUZsidaWed, 27 April 2005 06:06
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaWed, 27 April 2005 06:11
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ZZT231Wed, 27 April 2005 06:43
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaWed, 27 April 2005 06:54
Read Message   Re: ECU Compatibility across models ? Tech advice needed.  gold28Fri, 29 April 2005 03:44
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaFri, 29 April 2005 04:21
Read Message   Re: ECU Compatibility across models ? Tech advice needed. sideshowFri, 29 April 2005 08:34
Read Message   Re: ECU Compatibility across models ? Tech advice needed. CrUZsidaFri, 29 April 2005 08:38
Read Message   Re: ECU Compatibility across models ? Tech advice needed. sideshowFri, 29 April 2005 09:42
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaFri, 29 April 2005 14:38
Read Message   Re: ECU Compatibility across models ? Tech advice needed. THE WITZLFri, 29 April 2005 16:59
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaSat, 30 April 2005 00:06
Read Message   Re: ECU Compatibility across models ? Tech advice needed. CrUZsidaSat, 30 April 2005 01:22
Read Message   Re: ECU Compatibility across models ? Tech advice needed. THE WITZLSat, 30 April 2005 02:23
Read Message   Re: ECU Compatibility across models ? Tech advice needed. ra23celicaSat, 30 April 2005 05:47
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