Help Car wont start unless cps sensor removed.

Author Topic: Help Car wont start unless cps sensor removed.  (Read 2628 times)

Ibrahim

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Help Car wont start unless cps sensor removed.
« on: October 14, 2022, 06:48:55 PM »
Hi, I have a 1994 318i automatic that doesn’t start unless I unplug the camshaft position sensor. I thought the sensor was faulty so I replaced it with a new oem sensor. I still have the same problem. Then I thought the DME might be faulty so I also replaced it from one I bought online. Still the same problem. The camshaft sensor connector pins has  continuity with their respective DME pins (16 and 44).I’m stumped and I dont know what to do. Does anybody have an idea for why the car only start without the cps sensor.

DesktopDave

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Re: Help Car wont start unless cps sensor removed.
« Reply #1 on: November 12, 2022, 09:12:53 PM »
I moved the topic, you should get a little more visibility here.

Test the sensor resistance between pins 1&2. You should see about 640 ohms. I'd also test the other pairs, you should see very high resistance between them. If the CPS doesn't send a signal to the DME, the fuel pumps are shut off as a safety measure. I'd think that's what's happening in your case.
'08 Karmesinrot 128i 6MT
'86 Zinnoberrot 635CSi (M30B32/G265/3.46 torsen LSD)

Sold: '97 Montrealblau 318iS, '91 Brilliantrot 318i, '91 Brilliantrot 318iS