P0010 and P0243 Leads to no start?

7655 Views 15 Replies 3 Participants Last post by silver06passat, May 4, 2016

Fogcat

Discussion Starter · Apr 11, 2016

My MY07 2.0T Wagon has died! I received an MIL. Checked it out and it was P0010 and P0243. It almost immediately went off. The car was running fine and I set out to check the cam position actuator. I never got to it. My wife drove home from work and said the light came on again as she pulled in the driveway. I parked the car in front of the garage and checked the actuator. It was "just" out of spec by .5 ohms. The car then would not start. Huh? Can the P0243 cause a no start? If you do not know; it is teh N75 valve, turbo wastegate solenoid open or short circuit.

I do not own an OBD2 reader or vcds, so I do not know if it has thrown other codes since the no start (I an sure it has, waiting on delivery of a way to read them). I will be trying to check the N75 shortly. The car had to be pushed up an incline into the garage and needed more than a man and a boy to push it

. What wisdom is out there? Has my timing chain bit me?

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silver06passat

· #2 · Apr 11, 2016

As you know, P0010 is a fault for the Cam position actuator.....or engine timing solenoid....it controls the amount of timing advance and retard.....it could be as simple as a bad electrical connection, or a bad solenoid. it could also be a loose cam chain with a failing cam chain tensioner...but you would hear noises coming from the cam chain cover if that were the case. ( Our timing issues started with a bad cam follower on the HPFP and caused damage to the N275 valve, exhaust cam timing module, cam cover, ect, ect....but we were ignorant and let the problem go too long as we were busy tracing codes and replacing sensors, etc)
Your timing chain has probably not bitten you yet...you would have heard that!...the car would also probably not crank at all as pistons would have hit valves, ect....(but did the wife hear anything out of the ordinary on the way home?)

maybe start with the obvious: fuses. then the wiring at the solenoid, ect. decide if you want to splurge and replace the solenoid. then check your HPFP cam follower for wear..while you are in there, you can peek in and take a look at the intake cam lobe and chain.

I can tell you this....the whole timing system is dependent on oil pressure to work well. I have even cleaned out our N275 valve with improved idle results...do change the oil if you have not done so in a while as preventive care.

Not sure about the waste gate issue....but I did read somewhere that it affects how much fuel is sent to the motor?....totally not sure about that..who can confirm?!?!?!

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Fogcat

Discussion Starter · #3 · Apr 11, 2016

The cam follower was replaced 10K ago, it was OK but since it was out, I put a new one in. The Actuator was out of spec a tad, a new one is in place. It indeed will crank, fire, starter disengages and it stalls out, maybe 1 or cylinders fire. The coils and plugs were replaced 5K ago. The time for oil change is ironically less than 400 miles.. Also, 3 weeks ago, we changed the CAN gateway (upgrade) and installed a newer Nav Head unit (chinese type, much less than an RNS but still quite functional). An auto scan through vcds was done at that time, only an intermittent fault in pass. rear door lock module was found.

Maybe there is hope, have not checked through the fuses yet, as weather and health permits, I am checking the N75 valve. OBD2 bluetooth adapter is in route for retrieving codes. I am seriously down about this. No answers have shown on the vortex forum, thank you for useful info...Thank you.

silver06passat

· #4 · Apr 13, 2016

check all your engine grounds too....

I think the code reader will reveal some other issues.....you are getting fuel, correct?...We did replace our LPFP a while ago...(but for us it ended up being the HPFP that was the problem!)

JP

Fogcat

Discussion Starter · #5 · Apr 15, 2016 (Edited)

OK...I have now got some data to work with. I will be investigating fuse boxes and like. Look here:
Engine
Part #: 3C0907115F
Component: 2.0l R4/4V TFSI
Coding: 040C010A19070160 (hex)
Fault codes:
P1531 Camshaft Control, Circuit open
P0033 Turbo Charger Bypass Valve (N249), Control Circuit
P0243 Solenoid Valve (A) for Boost Pressure Control (N75), Open / Short Circuit to Ground
P2149 Supply Voltage for Fuel Injector Group B, Open Circuit
P2146 Supply Voltage for Fuel Injector Group A, Open Circuit
P2146 Supply Voltage for Fuel Injector Group A, Open Circuit
P0100 Mass Air Flow Sensor (G70), Supply Voltage
And a kicker: Part #: 3C0614095S
Component: ESP 440 C2 H
Coding: 46523 (decimal)
Fault codes:
01314 Engine Control Module (ECM)

Some obvious: MAF is disconnected...so no voltage.

They all seem to be electrical.....Anybody have knowledge beyond that? The tensioner will be replaced, could THAT be the cause?
And lastly; faulty ECU? Bad connector? Tired of banging head atm, will resume tomorrow.

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Fogcat

Discussion Starter · #6 · Apr 16, 2016

***UPDATE***
After extensive trouble shooting and use of Carista (I do not have access to vcds) The problem is down to the circuit that includes the N205, N75 , N249. The relay for the circuit is powered. The fuses in the main box are good (the F32?..anyway the correct one). I have not checked the relays under the dash yet.
Continuity between the ECU and connector for the N75 is next I suppose, maybe N75 is bad. I believe "I" cracked the connector on the top of the HPFP while testing out the N205 (doiiii!)

When the gateway was upgraded, the fellow who ran the vcds did NOT correctly set up the new gateway. Maybe that is causing some issues BUT I do not see how it affects the N205 / N75 circuit.
Any input that may help?

RichardSEL

· #7 · Apr 17, 2016

If CAN gateway coding was the issue, that would've shown up streight away.

Doesn't Autozone do VCDS scans anymore? After saving your first Autoscan, you'll have to go into each module and clear any fault codes existing as you don't want to go around chasing a fault that's historic but not current

Fogcat

Discussion Starter · #8 · Apr 17, 2016

I failed to mention that I was able to clear almost all the faults using Carista. An historic ABS fault remains. I did in fact start the car AFTER removing the faults. The N75 etc. faults reoccurred. Consequent checking shoed as I posted above. There are quite a few faults caused by the miscoded gateway as it cannot contact the modules that do not exist ie. headlight level, haldex, parking assist, I clearly do not have an AWD.

After driving a couple of miles to clear the dash lights and check for acceleration and the like, the N75/ N205 circuit faults are back. The turbo does not seem to activate resulting in high revs. before a shift. Sorry for the lack of info.

Fogcat

Discussion Starter · #9 · Apr 19, 2016 (Edited)

Resistance of N75 is 23.3 ohms. The voltage is 10.85! what is this? Shouldn't it be battery voltage? Same reading at N205. Is this a bad relay?
UPDATE**** Oil in the diverter connector!

silver06passat

· #10 · Apr 19, 2016

Fogcat said:
Resistance of N75 is 23.3 ohms. The voltage is 10.85! what is this? Shouldn't it be battery voltage? Same reading at N205. Is this a bad relay?
UPDATE**** Oil in the diverter connector!

where did the oil come from?...if it is wicking up through the connector via the valve, then the valve body/electrical connection could be compromised. if it is from an outside source (another leak) then just clean it up and you should be okay....(except for that other leak!)

I have seen solenoid/valves where this has happened on other German makes too. the only warning I have seen beyond the valve replacement is to be sure the oil has not wicked into the ECU...(sounds pretty rare to me, but you never know, right?)

so does this mean you fixed it?

JP

Fogcat

Discussion Starter · #11 · Apr 19, 2016

It is most definitely from the DV. I cleaned the connector, both halves with electrical cleaner. Put the whole thing together and "ran around the block"...5 to 6 miles. Goosed the gas a few times, the turbo actually spun up! I ran the Carista through the ECU tests annnd: No faults or issues in engine. The HPFP (which "I" cracked, showed under fuel. Other issues which are irrelevant to the discussion, so it is temp. fixed. Need to order new (or used) HPFP and a new diverter. Hope it solves it. Thank you for your input. Loads of head banging in the garage. I am disabled and it takes 4 or 5 times longer to do anything so its frustrating, having some advice is a real winner. THANK YOU.

Fogcat

Discussion Starter · #12 · Apr 20, 2016

BTW: VW POLO
THIS tells me that miscoding in the gateway combined with the N75 circuit malfunction WILL LIKELY cause Limp mode...ie Hard or no start. Maybe I've misread this but it seems so. Live and learn.

silver06passat

· #13 · Apr 26, 2016

Fogcat...

did you get a new HPFP...I may have a used one for you if interested.

JP

Fogcat

Discussion Starter · #14 · Apr 26, 2016

I got a used one (it looks like crap IMO), but it works. The brake booster vacuum line nipple cracked when I was removing it. Its very brittle. SO I now need a new one. The engine starts right up but quickly begins to lope, classic vacuum leak, plus the brakes don't want to work, oh well. DV still hasn't arrived, but there are "NO" codes thrown from the test drive! Thank you for offer of looking for pump. The only faults I now have are all due to incorrect gateway coding (I do have a lock issue with rear passenger door).

Fogcat

Discussion Starter · #15 · Apr 29, 2016

NOTE: Everything seems in order! Starts, runs, braking works. Just clear faults and run over time to see if its all clean. Thanks again Silver and... I may just ask about that HPFP. The used one I obtained is nasty corrosion and doesn't have a shrader valve. It however DOES work.

silver06passat

· #16 · May 4, 2016

Fogcat said:
NOTE: Everything seems in order! Starts, runs, braking works. Just clear faults and run over time to see if its all clean. Thanks again Silver and... I may just ask about that HPFP. The used one I obtained is nasty corrosion and doesn't have a shrader valve. It however DOES work.

let me know if it acts up ! glad it worked out for you.

JP

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