9N3 1.4 TDI won’t start after replacing blown fuse F14

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gjaf
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Posts: 3
Joined: Tue May 14, 2019 9:38 pm
Drives: 9N3 1.4 TDI Match 70
Location: UK

9N3 1.4 TDI won’t start after replacing blown fuse F14

Post by gjaf » Tue May 14, 2019 9:43 pm

Hi, I own a 2009 9n3 1.4tdi 70 with what I’m pretty sure is a BWB engine. I was driving recently when I thought the car went into limp mode. I switched the engine off and then tried to turn back on again, but it turned over for ages before starting and the engine warning light came on. I thought the issue might be the anti stutter valve, so I took it off and cleaned it, using the access to partly clean the EGR while I was at it. While both seemed to be in need of a clean, this didn’t solve the problem, so I got the error codes read and among five faults was the cam position sensor. I’ve replaced the sensor and the error code related to that is now cleared, but I’m still left with three errors and the long turnover before starting. The error codes are:
P2102: throttle actuator control motor- circuit low
P0243: turbo watergate solenoid A
P0489: EGR control circuit low

These can be cleared while the engine is on, but reappear at every start. Given the long turnover, I’ve been fighting a chronically low battery and haven’t been able to do any long or high speed runs since cleaning the anti-stutter and EGR.

I’ve resigned myself to selling, but would prefer to get the faults cleared before attempting to. Any words of wisdom?
Last edited by gjaf on Thu May 16, 2019 5:55 pm, edited 1 time in total.

gjaf
New
Posts: 3
Joined: Tue May 14, 2019 9:38 pm
Drives: 9N3 1.4 TDI Match 70
Location: UK

Re: 9N3 1.4 TDI Long startup with error codes

Post by gjaf » Thu May 16, 2019 5:54 pm

Turns out fuse F14 had blown - i’ve replaced it, but now the car starts, but only when I push in the throttle but dies immediately. I now get no fault codes, but if I take out fuse F14, it’ll start but all the error codes return. Any suggestions would be really helpful!

gjaf
New
Posts: 3
Joined: Tue May 14, 2019 9:38 pm
Drives: 9N3 1.4 TDI Match 70
Location: UK

Re: 9N3 1.4 TDI won’t start after replacing blown fuse F14

Post by gjaf » Thu May 16, 2019 10:18 pm

Could it be that the throttle butterfly valve’s still sticking after cleaning, or that I need to do some process to reset / relearn the position?

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