Is it Possible to disable CEL?

[stevieturbo]

Has he actually stated what the problem is here ?

[cornflakes2]

E-bmw said:

Allen is a brand name manufacturer of hex keys that has become the norm, just like most people call a vacuum cleaner a Hoover, which is a brand name.

A cam follower is often colloquially called a tappet like an automobile is often colloquially called a car.

Coils aren't the same as coilovers, coilovers are suspension, coils are more correctly called ignition coils, coil packs are a more modern version commonly found on cars now.

Thanks for that. Good to have some of it cleared up!

[annodomini2]

fooby said:

... A family member of mine with a 2014 Mercedes Citan has what sounds like a similar issue. No CEL or fault codes but it'll throw up random things like blown bulbs when there's nothing wrong and sometimes won't start at all. Does it have any aftermarket wiring? Head units, reversing sensors etc? His problems started after installing a reversing camera. Not sure if it's something to do with CAN bus, but might be worth looking into...

Screams earth fault to me.

CAN bus errors should be logged in at least one ECU.

However if one ECU keeps experiencing frequent low voltage conditions (earth fault), it could be resetting before the fault is logged.

Edited by annodomini2 on Tuesday 20th March 20:51

[cornflakes2]

I got a fault code today (first one that I know of).

Its: P2294 - Powertrain Fuel Pressure Regulator 2 Control Circuit.

It happened right after I drove around 140km/h and I noticed a loss in power and the EPC light came on.
I think this is what is called "limp mode" and I was still able to drive around but i think with less power.

After doing some more research, I read that I should first see if there's anything wrong with the wiring, connectors, etc.
Then if those are fine, the next thing to try is to replace the fuel pressure regulator which I think is called N276 valve, but
not sure if I can get it separately. I think I read that it only comes with a new fuel pump so I should replace the HPFP?

Just in case: 2013 VW Scirocco, 2.0 TFSI (EA113), 55k km, gasoline, with APR Stage 2+

Any advice or let me know if I'm thinking on the right track here?

[GreenV8S]

cornflakes2 said:

the next thing to try is to replace .....

Any advice or let me know if I'm thinking on the right track here?

I'd say the next thing to do is to have the problem(s) diagnosed methodically by somebody who understands how the engine and related systems work and not just to replace arbitrary components speculatively.

[cornflakes2]

GreenV8S said:

I'd say the next thing to do is to have the problem(s) diagnosed methodically by somebody who understands how the engine and related systems work and not just to replace arbitrary components speculatively.

Yes, I agree...it would save me money if I don't have to replace all those parts I guess.

I'm just wondering...is it possible that my foam intake air filter which is missing a chunk at the top which faces the intake nozzle, got sucked into my engine? I think the intake air foam was really old and it probably started to deteriorate and just got sucked in and left a hole in my foam. Could that foam turn into some heavy sludge that could clog any hoses/tubing/lines or is the fuel regulator / pump completely different lines that don't take any of the engine oil?

[GreenV8S]

I wouldn't expect any damage from the foam - other than perhaps physically jamming the throttle open and things like that, but foam filters usually use oil based filtration and need to be maintained to be effective. If not maintained, and especially if it now has a hole in it, it's going to be letting all sorts of junk into the engine and that can lead to accelerated engine wear.

[cornflakes2]

GreenV8S said:

I wouldn't expect any damage from the foam - other than perhaps physically jamming the throttle open and things like that, but foam filters usually use oil based filtration and need to be maintained to be effective. If not maintained, and especially if it now has a hole in it, it's going to be letting all sorts of junk into the engine and that can lead to accelerated engine wear.

thanks. I'm just wondering if that may have led to anything getting clogged and causing a EPC fault code with the fuel pressure regulator or if it has absolutely nothing to do with that.

[GreenV8S]

cornflakes2 said:

thanks. I'm just wondering if that may have led to anything getting clogged and causing a EPC fault code with the fuel pressure regulator or if it has absolutely nothing to do with that.

I don't see any way for it to affect fuel pressure, or the systems for controlling fuel pressure.