daveq7scotland Posted September 2, 2023 Share Posted September 2, 2023 Hi guys. Looking to see if anyone can shed some light to this. 2012 Q7 3.0 tdi, cut out on by pass when wife was driving it. Recovered to my garage and it won't start with no fault codes, pull the wire off the fuel pressure sensor and it will idle all day but won't rev up. New fuel filter,and whole in tank pump assembly from audi. It got 6 new injectors last year, which seem OK with a leak off test. I'm confused with it, all data on snapon comp seems as should do. Anyone came across this before Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 3, 2023 Share Posted September 3, 2023 Could it be an imobiliser issue? Quote Link to comment Share on other sites More sharing options...
Stevey Y Posted September 3, 2023 Share Posted September 3, 2023 20 hours ago, daveq7scotland said: Hi guys. Looking to see if anyone can shed some light to this. 2012 Q7 3.0 tdi, cut out on by pass when wife was driving it. Recovered to my garage and it won't start with no fault codes, pull the wire off the fuel pressure sensor and it will idle all day but won't rev up. New fuel filter,and whole in tank pump assembly from audi. It got 6 new injectors last year, which seem OK with a leak off test. I'm confused with it, all data on snapon comp seems as should do. Anyone came across this before Hi if you pull the wire off of the pressure sensor and it runs chances are it is the sensor gone as it has a default position for starting manually but is taking no signal voltage as its had it . Steve. Quote Link to comment Share on other sites More sharing options...
Leeq7 Posted Friday at 08:43 PM Share Posted Friday at 08:43 PM Hi there did this issue get sorted and if so could you tell me what it was please as mine has done the same thing 🤷🏼♂️🤷🏼♂️ Quote Link to comment Share on other sites More sharing options...
Magnet Posted Saturday at 08:03 AM Share Posted Saturday at 08:03 AM Hello Lee, Best to send the OP a PM, since he hasn’t been back to the forum for over a year. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
daveq7scotland Posted 3 hours ago Author Share Posted 3 hours ago Hi all. yeah, got it sorted it turned out to be the HP fuel pump that was the issue. changed pump.and all was good. i cleaned the tank and fuel lines and new filter, all was good for a few days then the turbo went so I sold it as was due to it needing a few bits done to suspension also. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.