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98 cadi deville several code s. IPC and more
#1
Hey folks , priciate the well spring of info. I checked the grounds. they all have been redone about 3 months ago on a block to cylinder head bolt problem. Complete top end was redone. I need help finding out what all the codes I had before I cleared them meant. Espically the 2 codes I still have. Does IPC mean it,s for the instrument panel? Codes b1552 and C1210 are in the history.
I had pcm codes po122 and po123p1121 and 1122 and 1599 and P0603 , any idea what all them mean or where can I go to find out? Back to autozone?
How about PZM 1552 what does PZM mean?
1 more if you will.. ACM b1348 was current. What does ACM mean? thanx and have a snowy afternoon. go BIG Blue. Mikeee and the mechanics
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#2
http://www.obd-codes.com/faq/obd2-codes-explained.php
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#3
http://www.obd-codes.com/index.php
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#4
DTAC B1552 Keep Alive Memory (KAM) Error

KAM or Keep Alive Memory is the memory in the computer. It could mean that the computer may have a problem. If you disconnect the battery, do the error codes go away? If so, then the computer may be getting power intermittently from the battery. I would check the connectors going to the computer at both ends to be sure there aren't any intermittent connections first. If push comes to shove, I would go to the junk yard and swap out the computer.

DTAC B1348 Very Low A/C Refrigerant Pressure

Hope that helps some :wink:
If it's got wheels it's gonna give ya trouble!
So let us know.
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#5
Oh and Yes IPC does mean Instrument Panel Cluster.


Shade :wink:
If it's got wheels it's gonna give ya trouble!
So let us know.
[Image: 2.gif]
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#6
Hey thanx for some help on the codes. I replaced the tps and checked the wiring, as it had a tps code. I checked all the plugs ohm tested the wires and injectors checked for vacuum leaks , replaced fuel filter. The check engine light does NOT come on and NO pcm codes are present. The engine runs ok sometimes but has a mis and backfires under hard acceleration. I tried some injector cleaner and it hasn,t worked yet. I treid to clear the codes by disconnecting the battery but it didn,t work. I went to obd and cleared them there. It did post 2 ipc codes but no pcm codes. I hate to replace a ECM . Any thoughts on an engine miss/backfire without a code? Could a mass air flow sensor be going bad and not trip a code? Thanx Mike and the sweetest mechanic you'll ever see.
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#7
my haynes book says for backfires: egr system, timing,vacuum leak,damaged valve springs,sticking valves
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