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#1
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e53 4.4 no start camshaft crankshaft sensor code
i getting camshaft sensor error code and crankshaft sensor error code. I waiting for both sensors now. Today morning i wanted to try again if i can turn engine on but i can only hear crank and nothing more. Its possible that my camshaft sensor is completly dead and i can't turn engine on when engine is cold ? i thought that if camshaft sensor is dead then i will be not able to turn engine on only when is hot but no problem with start when engine is cold ? i am wrong ? Sorry for my english I thought |
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#2
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Engine requires both cam and crank sensors to run at all. If it loses either sensor data it will shut off to prevent self destruction.
It determines when to spark and fuel using the sensors. You must have had a failure that was intermittent and temperature related where it would work at certain temps not others.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#3
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Engine will start if your camshaft sensor is disconnected i heard this many times , i cant try this coz my car is in garage now. Yes , its related to sensor temperature , when hot it won't start but my question is ..there is anybody who had experience with dead camshaft sensor and i won't start even when engine is cold ?
here is about disconnection camshaft sensor : https://www.bimmerforums.com/forum/s...or-Replacement |
#4
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Interesting about the limp home no cam sensor. I guess when I had no start from cam sensor it didn't have no signal or had a screwy signal. It seems you could possibly diagnose a bad cam sensor by unplugging it. (As long as crank sensors is working).
If I couldn't start and had cam error I would probably unplug the cam sensors and try to start maybe get one more piece of data. With errors on both seems unlikely unless one has been bad for a while and then the other finally also failed. I would be concerned there is a wiring / connector problem to have both with errors.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#5
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A dying fuel pump will not throw up a code. Start but dies sounds more like you got a fuel delivery problem.
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#6
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i was thinking about it but i tested it and there is pressure on fuel rail. Well , i didnt have camshaft and crankshaft sensor codes before....
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#7
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You can get random cylinder errors when fuel pump dies. "misfire with fuel cut off". I think when the pressure is too low you'll get misfires and the computer will shut off the offending cylinder.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#8
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i don't think so that it fuel pump or something , it didnt explain why i have camshaft and crankshaft errors i never heard that when there is problem with fuel pump then you will see camshaft sensors code
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#9
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FWIW: I only got cylinder with fuel shutoff errors when my cam sensor failed. Never a CPS related error.
Sent from my iPhone using Tapatalk Pro
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#10
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Hopefully, you used a fuel pressure gauge to test for adequate pressure and not just push the valve and she spritzes so it must be good.
__________________
2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
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