My car has left me stranded once again

[Attrick07]

Last week I was accelerating onto the highway and the motor completely cut out on me. Wouldn't start back up right away but I gave it 30 seconds and it was fine. This happened merging onto two different highways that day. It also died out on me in traffic at 20mph in low rpm in second gear.

Unfortunately I didn't have my vagcom with me at the time to scan the car but did some research and assumed it was the crank sensor and replaced it same day. Car had no problems for a week until last night when I drove to my cousins house and parked for a few hours. Went back out that night, started the car, it started up but then it died half a second later.

We scanned the car and the only things that come up are for the oil temp sensor short to ground, which has always come up, and a new code 01311 information data is intermittent. All fuses in the car are good also.

Car is stage 3 with EPL tune, new injectors, new fuel pump, new maf, new coilpacks, new spark plugs.

Is it possible I have a faulty crank sensor?


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[Lakotiy]

Cam position sensors can do that to you.

[keeganhartman]

Coolant temp sensor?

[Attrick07]

Is assume cam sensors would throw a code though.. Coolant temp sensor would keep the car starting even when the engine is cold?


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[pipe7284]

any lights turn on on the cluster? aside from the check engine light?

[keeganhartman]

Not sure I just had an issue similar on a 2.0 and throwing cps code. But they seemed to have similar symptoms and I found sometimes can cause the cps code to be shown. 14$ sensor replacement fixed the issue it was cracked. I know its a whole different animal but it's easy to check and cheap to replace. gl

[Attrick07]

When the key is turned to the on position all lights come on then turn off, only check engine light and epc light stay on


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[Smitty2A4]

When the key is turned to the on position all lights come on then turn off, only check engine light and epc light stay on


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Does your EPC light stay lit after starting the car? That could mean your throttle body is going bad, try to calibrate it with Vag-Com first, then clear the ECU of codes and see if the light remains on.

[Attrick07]

When I go to crank the ignition the epc and engine light do go away


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[james 408]

fuel pump?
any one of 12 sensors... although they'd probably code

[Attrick07]

The fuel pump went on me a month ago and I had it replaced by a shop. The car is parked an hour away from my house which sucks because I can't trouble shoot after work. I do smell fuel but who knows, maybe fuel filter is clogged. Don't know if something like that throws a code or not..

[Lakotiy]

If it's fuel smell in the engine Bay Area that's normal. Your motor gets flooded with fuel if the car won't start. I can smell fuel in my engine bay when my motor is running and that fine. Did you check if you're getting spark?

[Attrick07]

Hey guys here's a little update. Drove to my car after work tonight and scanned my car, here's what came up:

Saturday,01,March,2014,00:28:18:51408
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.2.0 (x64)
Data version: 20140212





--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8D - Audi A4/S4/RS4 B5 (1995 > 2001)
Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77

-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 8D0 907 551 M
Component: 2.7l V6/5VT G 0002
Coding: 06711
Shop #: WSC 06435
VCID: 34671DC004F3BFBE4FF-5124

No fault code found.
Readiness: 0110 0100

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 8D0 907 389 E
Component: ABS/ESP allrad D46
Coding: 04395
Shop #: WSC 12345
VCID: 356120C40F89A6B6781-5124

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8D0-820-043-1D.lbl
Part No: 8D0 820 043 P
Component: A4 KLIMAAUTOMAT D58
Coding: 00160
Shop #: WSC 06435
VCID: 2D5108A4E7D9EE76001-258C

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8D0-959-655-AI8.lbl
Part No: 8D0 959 655 G
Component: Airbag Front+Kopf 1002
Coding: 00304
Shop #: WSC 06435
VCID: 3A7B33F8269749CE953-5124

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8D0-920-xxx-17.lbl
Part No: 8D0 920 981 B
Component: B5-KOMBIINSTR. VDO D12
Coding: 02264
Shop #: WSC 06435
VCID: 2B5506BCD9CDE0461E5-5124

4 Faults Found:
01300 - Control Module for Navigation with CD-Rom (J401)
49-00 - No Communications
01304 - Radio
49-00 - No Communications
00562 - Sensor for Oil Level/Temperature (G266)
30-10 - Open or Short to Plus - Intermittent
00562 - Sensor for Oil Level/Temperature (G266)
29-00 - Short to Ground

-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 8D0-862-257.lbl
Part No: 8L0 862 257 N
Component: CV-Pump, Alarm, RC D16
Coding: 16200
Shop #: WSC 06435
VCID: 408F4110404B131EDB7-4ECE

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 4B0-951-173.lbl
Part No: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00101
Shop #: WSC 06435
VCID: E0CF2190608BF31E7B7-4B4C

No fault code found.

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4B0-907-357-AUT.lbl
Part No: 4B0 907 357
Component: LEUCHTWEITEREGLER D004
Coding: 00012
Shop #: WSC 06435
VCID: E5C130847FA99636881-517C

No fault code found.

End ------------------------------------------------------------------

[zillarob]

Look at the rpm in vcds when cranking if you think it may be the crank sensor.
Turning on any of the output tests will fire the fuel pump.

Edit
Didnt notice you drove it.
Intermittent ones suck, keep the cable with you so you can catch it when it is acting up.
Watch fuel trims if you think pump.

[spd579]

Could it be a loose ground that comes off then gets reconnnected?

[Attrick07]

The car runs again! Issue was the harness that supplies power to the pump is faulty and loose. That's why car would die randomly as I would accelerate or hit bumps in the road. Thanks for everyone's help!!


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