Bins for 89 305 TPI?

[Bruce Plecan]

  1.. This step will determine if Code 33 is the result of a hard failure or an intermittent condition.
  A Code 33 will set if: 
    a.. MAP signal voltage is too high (low vacuum) 
    b.. TPS less than 2% 
    c.. These conditions for a time longer than 5 seconds 
  2.. This step simulates conditions for a Code 34. If the ECM recognizes the change, the ECM and CKTs 474 and 432 are OK. If CKT 452 is open, there may also be a stored Code 23.
  3.. Grumpy 
  ----- Original Message ----- 
  From: TK 
  To: gmecm at efi332.eng.ohio-state.edu 
  Sent: Sunday, November 14, 1999 11:09 PM
  Subject: Re: Bins for 89 305 TPI?


  Isn't the max maf airflow table used for throwing a Malf 33 (MAF too high)? It's RPM VS AIRFLOW.

  Peter? Bruce?
    I'm working with MAF still, still having this weird problem of intermittent Code33(MAFHI). One of these days, I'll figure it out. Must be loose wire somewhere, maybe in the sensor, maybe something else loose or spikey. Maybe throw some caps around & see what happens. Might like one of those heated O2 sensors for the TA. Probably speed closed-loop approach with headers.
     
    Comments appreciated, particularly with respect to happy hackers with 305TPI applications.
     
    Thanks,
    -Craig
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