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Author Topic: Can't Start Car - Please Help  (Read 8331 times)

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Kev

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Re: Can't Start Car - Please Help
« Reply #15 on: 01 October 2006, 23:22:55 »

Quote
Quote
Bah....  :-[

What are the probables...?

Immobiliser
Sensor
ECU
Fuse
Relay

Anything else?
Out of fuel?  :o  Hey, you'd be surprised!   ;D

Kev may have some ideas . . .  ;)
I don't think it's what you think i think it is.  ::)

Not if the EML is extinguishing while cranking.  ;)
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sophos9

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Re: Can't Start Car - Please Help
« Reply #16 on: 01 October 2006, 23:24:52 »

Hi Kev,

Cryptics....

Do you think its the relay?
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Kev

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Re: Can't Start Car - Please Help
« Reply #17 on: 01 October 2006, 23:33:13 »

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Hi Kev,

Cryptics....

Do you think its the relay?
It could be, have you paperclip'd it yet? It would help to know if you had a DTC stored.

Looks like it's not the crank sensor though, you were correct in your previous post, the EML would stay on while cranking if that were the case. Also, as Jaime says, the EML would flash while cranking if it were an immobiliser issue, so that pretty much rules that out too.

Have you had a meter at the fuel pump to check for power there while cranking?  ::)
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sophos9

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Re: Can't Start Car - Please Help
« Reply #18 on: 01 October 2006, 23:36:13 »

Thanks for the help.

Yep, had a meter on the pump and no voltage whilst cranking...
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Kev

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Re: Can't Start Car - Please Help
« Reply #19 on: 01 October 2006, 23:39:38 »

Quote
Thanks for the help.

Yep, had a meter on the pump and no voltage whilst cranking...
Next, are you getting power to energise the coil of said fuel pump relay, again, while cranking?

It really is a process of elimination here. Did you get any DTC's from the ECU?
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sophos9

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Re: Can't Start Car - Please Help
« Reply #20 on: 01 October 2006, 23:46:37 »

Checked fuses, all good!

Have not checked EML, car is now stuck like 20 miles away, will check it 2mo,crank will come up anyway... anything else specific it may point towards

Did not check for coil being energised, how would I do that please?
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Kev

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Re: Can't Start Car - Please Help
« Reply #21 on: 01 October 2006, 23:57:27 »

Quote
Have not checked EML, car is now stuck like 20 miles away, will check it 2mo,crank will come up anyway... anything else specific it may point towards
You should check for a DTC, the answer could be right there waiting to be flashed out and will only take seconds to do.  ;)

Quote
Did not check for coil being energised, how would I do that please?
Again, using your meter. You'll need to withdraw the suspect relay and insert your probes into the connectors which power the coil. There may be a pinout diagram on the relay, i'm not 100%. If not you can open it up to see which pins are required. A half decent meter with a good set of probes is required. Again, this should be checked while cranking. ::)
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sophos9

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Re: Can't Start Car - Please Help
« Reply #22 on: 02 October 2006, 07:55:09 »

Cheers Kev,

Am going over to the car this morning and will test it all out, if the coil is not being energised, what is it likely to be?

Fingers crossed a simple relay sorts it!

Will post up when I know more....  :-[
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Marks DTM Calib

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Re: Can't Start Car - Please Help
« Reply #23 on: 02 October 2006, 08:34:45 »

One of the relays provides power to the coil, sensors etc.....

Afraid I still suspect crank sensor.....
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sophos9

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Re: Can't Start Car - Please Help
« Reply #24 on: 02 October 2006, 08:47:30 »

Mark, Hi

What I'm gonna do is swop the relay that controls the fuel rail with the fuel pump relay, if fuel comes through then its sorted and I'll buy another relay

How much is a crank sensor and how hard is it to fit?

Cheers mate
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Marks DTM Calib

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Re: Can't Start Car - Please Help
« Reply #25 on: 02 October 2006, 09:03:51 »

15 minutes to fit and about 40 quid......

The relay swap is worth a try...I am not hopeful though as I have never known one fail yet!
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sophos9

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Re: Can't Start Car - Please Help
« Reply #26 on: 02 October 2006, 09:07:06 »

Mark,you remember my post about an oil leak down that side, you asked if I have changed the heat exchanger.... Don't tell me thats the same side as a crank sensor, right next door to the oil filter....

The oil is running down, its probably boiled it...  :'(
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Marks DTM Calib

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Re: Can't Start Car - Please Help
« Reply #27 on: 02 October 2006, 09:29:08 »

Ok I wont tell you that...but yes....thats where it is ......right next to the oil filter.

What year is it....does it have IR remote or RF?
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Admin

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Re: Can't Start Car - Please Help
« Reply #28 on: 02 October 2006, 11:28:44 »

I will be amazed if this not the crank sensor personally. :)

As the boss says. 15 minute job and part is £40 ish.
Just remember route new sensor away from engine.
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TheBoy

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Re: Can't Start Car - Please Help
« Reply #29 on: 02 October 2006, 13:12:40 »

As I've already hinted, I reckon its crank sensor. It may even possibly start when you get to it, though may let you down at any time.
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