Pin 8 32 flashes.. something with the ks 1 and ks2 circuits are open..,

Can’t seem to shake codes off this thing

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

Ok I figured out it’s both knock sensors. Not sure why there all of a sudden tripped a code

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

The timing is automatically adjusted to prevent knock based on the knock sensors. Maybe not enough octane in gas, timing chain maybe due for a change? Doubt it's anything in the distributor.

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92 e300d2.5t
01 e320
05 cdi
85 chev c10

I dunno I reset it. Just had the battery cable off for the day for a transmission swap. Maybe just a fluke. Plus I haven’t driven this car too much in the last few months. Everything on this car is fresh up to date. I did new timing chain, tensioner and guides last year when I did the head gasket. Timing is spot on. No distributor with the 3.2

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

Now getting a pin 8 32 and 33. Frustrating everything on this car is on point

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

"Circuits open" means just that - the circuits are open. You have a broken wire, disconnected pin/plug, or corrosion causing problems here. Has the wiring harness been replaced on this car?

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Yup twice and I swapped out the one from my Perfectly running 94 To double check. Was getting the cam sensor code but I retimed the chain and adjuster, it was a lil off. Throttle actuator updated. The car runs beautifully. This is the first a knock sensor code came up.

I’ll double check the connections. One thing I recently had the transmission replaced. Maybe the mechanic bumped things around under the intake.


This not a negligent engine. Whatever parts it needs it gets

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

Knock sensors can and do fail (BMW guys know about them quite well). Usually the failure mode is excessive activation from internal fractures or corrosion which then causes drivability problems, CEL, or low power from retarded ignition. Usually "Open circuit" codes are the ECU complaining about an incomplete circuit. It's possible that something got unplugged, a wire broken off, or something pinched in the bellhousing when the transmission was replaced. Could also just be coincidence. Be aware that knock sensors are delicate and fragile things, don't bother with used parts they will already be bad or fail shortly after being installed.

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

I don’t want to Toss expensive parts on it if I don’t have to. I’ll try to get a used part and see if things change.

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

Trying to get this thing smogged. I should just ride around dirty like everyone else

Ok I can relax with a beer now. Passed smog. Good for 2 more years.

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

Still can’t shake the 32 blinks. Swapped out knock sensors. Maybe possible the wiring is eco somewhere else?

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

check continuity of the knock sensor wiring and its sheathing, the wires are shielded.

you may need to redo the wiring if its internally broken.

and as mentioned above, if you physically hear a spark knock from the engine and the timing doesnt change, you have a duff knock sensor. I think these old benzes used a plain knock sensor that is tested with a hammer strike to the engine.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Can’t even buy the the 2-1 pigtail knocksensors anymore. I might have to splice something together

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

What info do you need? I have the FSM for all the W124 models from '87-'95

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1990 190E 3.0L

I’m gonna get the knock sensors from a 96 m104 since they changed to a different cheaper style and incorporate them into the 4 pin connector of the 95. ******** has the 2-1 sensors from some generic brand and they cost over $300. Nope

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