Question about 1995 Cadillac DeVille

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Check engine light on

These are the codes which came up on onboard computer. p030, i032, i039

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  • Anonymous Mar 16, 2014

    P030

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P030 is o2 sensor

Posted on Jan 17, 2009

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Trouble code P030


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Code #P030


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My VW passat 6 cly engine light on recently, i got two code I forget,P2906? , 2907? I didn't do anything, I just erase the code), but today light on again I got code is P0305 , this is diffrent...


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89 ford ranger check engine light blinks when I go above 55mph. Is there a common problem with these trucks that I can diagnose myself?


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No fire to one of the coils which supplies 2 plugs engine light on and running on 4 of 6 cly.


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Check out the wiring diagram:
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dde5042.jpg 78bd4d6.jpg Problem could be here or at the ECM connection. If not, then the coil pack has gone bad.

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Battery No Charge and Error codes


These are for 4.9L


P016-generator voltage out of range--Voltage is below 10 volts or above 16 volts with engine at 500rpm.

P030-Idle speed control (ISC) out of range--Check ISC for operation

A047-very low A/C refrigerant condition warning--check refrigerant level

I039-speed sensing suspension (SSS) fault--this one requires a lot of testing. Could be anything from bad connection at a strut, to bad ground, to bad strut.

I041-battery voltage too low--at 800 rpm, voltage is less than 10.6 volts

I052-keep alive memory error--means IPC lost voltage, and reset. Normal if battery was disconnected, or lost voltage.


These codes are for 4.6L


I039-loss of road sensing suspension (RSS) data--might need to replace rss module

P016-generator voltage out of range--same as above.


If you need anything else, let me know.

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