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Crank but no spark. 2001 vw golf 2.0 ach motor. Avh. New…

Customer Question
Crank but no spark ...

Crank but no spark

Mechanic's Assistant: What is the model/year of your VW?

2001 vw golf 2.0 ach motor

Mechanic's Assistant: How many miles are on the car? Is it an automatic or a manual transmission?

Avh

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

New coil new crank position sensor new plugs and wires new timing belt new water pump

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Yes doing it myself

Submitted: 5 months ago.Category: VW
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Answered in 2 minutes by:
3/10/2018
VW Mechanic: Kevin, VW Mechanic replied 5 months ago
Kevin
Kevin, VW Mechanic
Category: VW
Satisfied Customers: 3,102
Experience: Diagnostic technician at vw/ audi specialist
Verified

Hi im kevin are there any fault codes in system ?

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Customer reply replied 5 months ago
Code reader can't connect with car
Customer reply replied 5 months ago
No
VW Mechanic: Kevin, VW Mechanic replied 5 months ago

Does engine management light illuminate on dash board ?

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Customer reply replied 5 months ago
You mean epc light
VW Mechanic: Kevin, VW Mechanic replied 5 months ago

No the engine management should be there also yellow engine block shaped warning

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Customer reply replied 5 months ago
the engine block with little lightning bolt
VW Mechanic: Kevin, VW Mechanic replied 5 months ago

Ok and what scanner are you using ?

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VW Mechanic: Kevin, VW Mechanic replied 5 months ago

how did this problem start ? Does fuel pump run ?

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Customer reply replied 5 months ago
An innova ob2 scanner
VW Mechanic: Kevin, VW Mechanic replied 5 months ago

does fuel pump run ?

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Customer reply replied 5 months ago
I just bought the car and thought it would b crank position sensor but not it
Customer reply replied 5 months ago
fuel pump runs
VW Mechanic: Kevin, VW Mechanic replied 5 months ago

ok so you really would need to try another scanner to msee if you can get comms with ecu

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Customer reply replied 5 months ago
Everything works other then two coils with no spark
Customer reply replied 5 months ago
Ok I just bought this for this reason
Customer reply replied 5 months ago
this was no help either
VW Mechanic: Kevin, VW Mechanic replied 5 months ago

ok let me just check wiring diagram .do you have a voltmeter

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VW Mechanic: Kevin, VW Mechanic replied 5 months ago

my info on this engine code is limited il opt out another tech may have more info

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Customer reply replied 5 months ago
Ok
VW Mechanic: Amedee, VW Technician replied 5 months ago
Amedee
Amedee, VW Technician
Category: VW
Satisfied Customers: 28,313
Experience: ASE certified Technician advanced level specialist. Wisconsin certified emissions state inspector
Verified

Hello and welcome!

Different expert here.

This condition no start condition is likely caused by this no communication issue that you are experiencing. If the ECM is not able to communicate, then it is not going to be able to start and run the engine.

Some possible causes would be..

  • Blown fuse
  • Ignition switch
  • ECM
  • Another faulty module on board the vehicle
  • Shorted sensor (pulling the reference voltage down)
  • Wiring issue
  • Faulty ground

I am glad I can help! Keep in mind this is a "starting point". My goal is to give you the best experience possible! I hope I have earned a 5-star rating! Please remember to rate my service by selecting the 5 stars at the top of the screen before you leave today. If you need more assistance, please use the reply box and let me know.

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Customer reply replied 5 months ago
if I do a jumper wire from ecu to coil signal switch to bypass a short would that work
VW Mechanic: Amedee, VW Technician replied 5 months ago

I doubt it.

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Customer reply replied 5 months ago
do i need a ecu
VW Mechanic: Amedee, VW Technician replied 5 months ago

It is possible but some further checking needs to be done first.

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Customer reply replied 5 months ago
Does a new ecu need flashed
VW Mechanic: Amedee, VW Technician replied 5 months ago

I do believe so.

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VW Mechanic: Amedee, VW Technician replied 5 months ago

I am glad I can help!

Please don't forget to honor your good faith deposit by rating my answer as "5 STARS or SMILEY FACES" for assisting you today.

Keep in mind, we can still continue this conversation at no further cost to you even after you rate my answer. Just reply back to me using this page and I will get it and get back to you ASAP!

I just ask that you allow time in between replies as I may be helping other customers or offline spending time with the family.

Also, if you are a member or if you have a subscription to the site, you still need to rate my answer in order for me to get credit for assisting you with your question.

You should see the rating system towards the top of the page.

Please let me know if you have any further questions.

Thanks and have a great day!!

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Customer reply replied 5 months ago
Ok so this site is really no help
VW Mechanic: Amedee, VW Technician replied 5 months ago

I answered all of your question.

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Customer reply replied 5 months ago
Just throwing out guesses anybody can do that
Customer reply replied 5 months ago
Car is not running so no really u didnt
VW Mechanic: Amedee, VW Technician replied 5 months ago

I am not guessing. I am giving you possible causes.. which is what you asked for.

It needs to be diagnosed.

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VW Mechanic: Amedee, VW Technician replied 5 months ago

This site is not intended to be used in place of a full blown diagnoses on your vehicle.

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VW Mechanic: Amedee, VW Technician replied 5 months ago

Of course I cannot diagnose the vehicle over the internet.

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VW Mechanic: Amedee, VW Technician replied 5 months ago

This site is used for informational purposes ONLY.

Keep in mind, I am trying to help you by answering all of your questions.. which is exactly what I did.

Your welcome.

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VW Mechanic: Danny, VW Mechanic replied 5 months ago
Danny
Danny, VW Mechanic
Category: VW
Satisfied Customers: 4,621
Experience: ASE Master Certified with L1 Certification, Volkswagen Certified, VW and Audi repair shop owner
Verified
I have no problem diagnosing this.So if the tachometer is not registering that the engine is moving and showing that it's in a couple hundred RPM while cranking, then the crankshaft position sensor is not communicating with the engine computer.Here's a link to the reason why the scan tool won't communicate with the vehicle my guess is that you have an aftermarket radio and the radio harnesses short power to the communications bus you need to clip wire off the harness.http://www.ross-tech.com/vag-com/aftermarket-radio.htmlScroll down to the bottom and show you what wire to cut.Okay so now the issue is there's a problem with the crankshaft position sensor signal and you need to run new wires all the way from the crankshaft position sensor to the engine computer.Those wires are supposed to be twisted pair so you kind of braid them together so they don't create counter electromagnetic interference.Please let me know if the tachometer is actually showing that the engine is spinning and showing a couple hundred RPMs, but my guess is that it's not, and the jammed communications bus has nothing to do with it.Continue working with me I'll get your vehicle running I can definitely diagnose over the internet.
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Customer reply replied 5 months ago
the new wires from crank position sensor are they temp wires or need to b run with the harness
Customer reply replied 5 months ago
P0354 code which is ignition coil not functioning properly
Customer reply replied 5 months ago
Any answer ?
VW Mechanic: Wolfgang, VW Master Technician replied 5 months ago
Wolfgang
Wolfgang, VW Master Technician
Category: VW
Satisfied Customers: 5,247
Experience: Senior VW Master Tech 15 yrs
Verified

Welcome, I'm Wolfgang, Master VW Tech.

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Since 2 other people tried to assist and did not get anywhere lets start from the beginning.

you have spark in 2 cylinders and the other 2 does not have spark correct?

you have a code p0354 only?

Since you have a new timing belt do you have compression in all cylinders?

This is to start.

Thanks

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Customer reply replied 5 months ago
No spark at all, only that one code and good compression
VW Mechanic: Wolfgang, VW Master Technician replied 5 months ago

ok i need a vin #

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Customer reply replied 5 months ago
Sorry wasn't home
Vin#9BWBT61J914052561
Customer reply replied 5 months ago
Did u get it
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