Hi; need help, on my 2003 s600 I have misfire codes on cylinders 7-12. Had coil pack rebuild, transformer check ,replace o2 sensors, MAP sensors,Charge air temperature sensor,upstream and downstream of air cleaner sensors Crankshaft position sensor and camshaft position sensors and new plugs. Reset codes, drove car 100 yards ckeck engine came on . what to do next?
Which plugs?
Under what circumstances does it misfire?
Nick
Under what circumstances does it misfire?
Nick
plugs 7-12 also when the car is driven or just in park. The car can hot or cold. gersandaniel.
OK. What's the make and part number of the plugs?
The plugs are OEM plugs Part#004-159-14-03. I also had the voltage transformer rebuild. The car did ok for about a week then started the misfire again. Thinking about putting on a new voltage transformer. running out of options.
Senior Member
Looks like your voltage transformer gave up again after being rebuilt. I would advise getting a new one, since one whole bank of cylinders misfiring usually indicates a voltage transformer problem.
V12icpack.com
has a voltage transformer rental program to make sure that's what it is
you can either keep theirs if it works for you or send it back and buy new if you want new
has a voltage transformer rental program to make sure that's what it is
you can either keep theirs if it works for you or send it back and buy new if you want new
Super Member
Don't think the issue is with the VT as it has been rebuilt. Wiring problems would caused the exact same errors.
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Senior Member
This is very interesting... half my engine decided to go out today... again... for the 5th time... and this time it seems to be symptoms of a voltage transformer issue. Half the engine went out randomly while driving under normal conditions.
My voltage transformer went out a little over a year ago, and I got it rebuilt/repaired instead of getting a new one. Looks like the plastic casing on the old part number for the voltage transformer 00 150 01 58 is prone to the heat of the engine since it sits directly on top of it, and causes it to go bad often. However, with the newer redesigned voltage transformer with the part number 000 150 02 58 the casing seems to be made out of heat-resistant material and should be more reliable.
I'll also keep this thread updated on my own random and disappointing trip down the misfiring memory lane again...
My voltage transformer went out a little over a year ago, and I got it rebuilt/repaired instead of getting a new one. Looks like the plastic casing on the old part number for the voltage transformer 00 150 01 58 is prone to the heat of the engine since it sits directly on top of it, and causes it to go bad often. However, with the newer redesigned voltage transformer with the part number 000 150 02 58 the casing seems to be made out of heat-resistant material and should be more reliable.
I'll also keep this thread updated on my own random and disappointing trip down the misfiring memory lane again...
