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PCM (SBEC) internal sensors?

Discussion in 'EEK! - Every Extended-K Car' started by William Pinson, Nov 1, 2017.

  1. William Pinson

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    Does anyone know if the early '90's SBECs had internal sensors?

    I am getting some slight symptoms (and sometimes not so slight) on my 1993 Shadow, 2.5L TBI manual, that would normally be indicative of MAF sensor problem, yet there's no MAF sensor on that car. The SBEC housing is part of the intake air ducting, and has heatsinks that are cooled by pulled-in intake air. I can see how a MAF could be integral to the SBEC, physically.

    Thanks!
     
  2. valiant67

    valiant67 Rich Corinthian Leather
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    Chrysler used a speed density system, no MAF was used.
     
    ImperialCrown likes this.
  3. ImperialCrown

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    There may or may not be an ambient (inlet) air temperature sensor in the PCM body airsteam. Not to be confused with intake (manifold) air temperature.
     
  4. 85lebaront2

    Level 2 Supporter

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    I know there is a battery temperature sensor internal, on air temp, many of the TBI cars had a temp sensor in the TBI unit, Intercooled turbo models have one in the intake manifold.
     

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