Pin 8, .. 13,25,33,35 blinks. Replaced my 3rd engine harness because the cam sensor line was intermittent. Almost every sensor is new. I’m running out of ideas

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero

Are there any evident driveability symptoms? The 13/33/35 codes are pointing me toward a vacuum leak, but I tend to overthink things sometimes. Also, I know this sounds rudimentary, but make sure to clear the codes and see which ones come back.

Best Regards,
Rob

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Robert Fini

'12 ML350 BlueTec, 100k
'06 E320CDI (x2)
'05 T1N Sprinter 2500/Pleasure-Way Plateau TS, 70k
'97 C36AMG, 319k (son's)
'94 E320T, 249k
'93 190E Sportline LE, 168k (daughter's)
'84 190E-2.3/5spd (Stage Rally Racer)
'66 230 W110 Sedan (Barn Find, Vintage Racer build in progress)

Run beautiful. If it wasn’t for the light on the dash id say it runs perfect. I’ll double check the vac connectors. Gotta get this cleared up so I can smog it.

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero

any way to supply short burst of power for light after ignition,like using a cap?

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt

Found a vac line off. Only have the pin 8 25 blink code that won’t stay off. I’ve had that code for about 2 years. Not sure what to do about it

__________________
1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero

That's the cam sensor.

You said in your original post that you've had trouble with this and that "almost" every sensor is new, so I'm assuming that that's one of them. You also said you've replaced the engine wiring harness three times. I was getting weird codes about voltage levels being implausible and just by chance had to replace the lower engine harness (the one with the positive battery lead), after which these codes disappeared; I suggest that you check the condition of the lower harness.

Best Regards,
Rob

__________________
Robert Fini

'12 ML350 BlueTec, 100k
'06 E320CDI (x2)
'05 T1N Sprinter 2500/Pleasure-Way Plateau TS, 70k
'97 C36AMG, 319k (son's)
'94 E320T, 249k
'93 190E Sportline LE, 168k (daughter's)
'84 190E-2.3/5spd (Stage Rally Racer)
'66 230 W110 Sedan (Barn Find, Vintage Racer build in progress)

The lower harness is new. I have an oscilloscope but have no idea how to use it to check the output of the sensor. I’ve swapped the cam parts from my 94 to see if things change but no change. The only thing I haven’t changed was the ecu.

MAybe the ecu is fubared from the po driving for such a long time with bare wires touching everything?

__________________
1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero