95 Deville 4.9 Code P032
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 95 Deville 4.9 Code P032 in Past Cadillac Vehicle Discussion; Code p032(current) - open map sensor This is the only code I get. I've replace the map sensor, the connector ...
  1. #1
    Jsolomon2049 is offline Cadillac Owners Member
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    95 Deville 4.9 Code P032

    Code p032(current) - open map sensor

    This is the only code I get. I've replace the map sensor, the connector to the sensor and even replaced the hose that goes to map sensor to the throttle body. Cleared codes and p032 just will not go away. Also my car has bad acceleration and I'm hoping fixing this map problem will fix my acceleration problem. Any ideas? Also would a bad egr cause these problems.

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  3. #2
    strick is offline Cadillac Owners Member
    Automobile(s): 94 DeVille 4.9L 70k
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    Re: 95 Cadillac Deville 4.9 Code P032

    (I'm looking at my '94 FSM. Your car could be different.)

    Can you get the data value that PD02 is reporting?

  4. #3
    cadillac_al is offline Cadillac Owners Connoisseur
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    Re: 95 Cadillac Deville 4.9 Code P032

    You should verify that the MAP is getting proper vacuum. If it is, it could be a defective MAP sensor. I suppose nothing is 100% problem free and there could be a one in a million chance that a defective MAP made it to the consumer.

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    Jsolomon2049 is offline Cadillac Owners Member
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    Quote Originally Posted by cadillac_al
    You should verify that the MAP is getting proper vacuum. If it is, it could be a defective MAP sensor. I suppose nothing is 100% problem free and there could be a one in a million chance that a defective MAP made it to the consumer.
    the map sensor I just replace was still under warranty from orielly. So I just took it there and swapped it out. Cleared codes p032 still comes up. How would I check proper vacuum?

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    My pD02 data is 14. I think I read somewhere 10-16 is good.

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    Quote Originally Posted by strick
    (I'm looking at my '94 FSM. Your car could be different.) Can you get the data value that PD02 is reporting?
    PD02 Data is 14.

  6. #5
    reppinshadyvill is offline Cadillac Owners Fanatic
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    Re: 95 Cadillac Deville 4.9 Code P032

    Sounds like it's time for a multimeter and a wiring diagram. Seems like you have a broken wire somewhere.

  7. #6
    Jsolomon2049 is offline Cadillac Owners Member
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    Quote Originally Posted by reppinshadyvill
    Sounds like it's time for a multimeter and a wiring diagram. Seems like you have a broken wire somewhere.
    I've actually tried the multimeter and received the correct volts from all three wires. I'm just hoping once I get my ignition time set(know for a fact it's off time) and replace my egr (past due) the code may go away. Maybe one of them are throwing the code. Could that be possible?

  8. #7
    strick is offline Cadillac Owners Member
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    Re: 95 Cadillac Deville 4.9 Code P032

    As I read it, the '94 FSM indicates that a PD02 reading of 14-16 kPa is not good. Between 17 and 109 is probably OK, but not 14. If you follow the fault tree under 14-16, you find: 1) Bad map sensor (which you have replaced twice) 2) Bad wiring/connections to and from the PCM and 3) Bad PCM itself. Book says 106-109 kPa means circuits and PCM are OK.

    Edit: I should have made it clear that either #1 OR #2 OR #3 alone could cause it...not that it had to be a combination.

  9. #8
    Jsolomon2049 is offline Cadillac Owners Member
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    Quote Originally Posted by strick
    As I read it, the '94 FSM indicates that a PD02 reading of 14-16 kPa is not good. Between 17 and 109 is probably OK, but not 14. If you follow the fault tree under 14-16, you find: 1) Bad map sensor (which you have replaced twice) 2) Bad wiring/connections to and from the PCM and 3) Bad PCM itself. Book says 106-109 kPa means circuits and PCM are OK. Edit: I should have made it clear that either #1 OR #2 OR #3 alone could cause it...not that it had to be a combination.
    I'm guessing I'll try to call a junkyard and see can I get one from them or go with the one off rock auto..But is the PCM (power train control module) the same as the ECM (engine control module).

  10. #9
    strick is offline Cadillac Owners Member
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    Re: 95 Deville 4.9 Code P032

    AFAIK, the PCM and ECM are the same thing. Personally, before I threw any more parts at it, I'd get out the multimeter and some backprobe pins and trace out the wiring to make sure it was all intact. (Warning - serious personal opinion coming) I think the PCM sends out 5.0 volts and expects to get back something a little less that than, depending on what the map sensor did. The P032 code says that the computer didn't get back ANY voltage. You've eliminated the sensor so it's likely wiring/connectors or internal to the PCM itself. I can check my '94 wiring if you want to try to check the circuits first. Possibly you can find a '95 wiring diagram on the net.

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