Service manual or Wiring diagrams for fuel system?
Thread Starter
Newbie
Joined: Jan 2019
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2014 ML350 Bluetec
Service manual or Wiring diagrams for fuel system?
I'm trying to troubleshoot the Wife's ML350 Bluetec. It died while driving. It has a code for low side pressure censor has a short circuit to ground. The pressure sensor is working properly. The fuel pump will not come on but when I try to turn it on with my scanner it want let me due to the pressure sensor. It says it has to be between 3.5 and 11, with the sensor connected it reads 14 and disconnected 0. Any suggestions or does anyone know where there's is a service manual with diagrams available for reasonable price?
Out Of Control!!
Joined: Sep 2018
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From: unbegrenzt
2017 GLE350 4MATIC
WIS/EPC available on ebay.
To improve your diagnostic system, buy a XENTRY setup from @BenzNinja .
For 10 year old car with a known problematic engine I would throw parts at it (pressure sensor, for example) or sell it.
To improve your diagnostic system, buy a XENTRY setup from @BenzNinja .
For 10 year old car with a known problematic engine I would throw parts at it (pressure sensor, for example) or sell it.
Thread Starter
Newbie
Joined: Jan 2019
Posts: 10
Likes: 0
2014 ML350 Bluetec
No I ended up getting the Alldata for it and found out the Low pressure fuel sensor feeds into the pump module. I back probed the sensor and it was giving readings in range on omhs. I put voltage directly to the pump and I could hear it coming on. So I decided it was the pump module. I got a new Pump module and programed it. Now the pump is turning on but the pressure is too low. That's as far got so far.
