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Gtir Motorsport club » Tech room » Help and Advice » Starting problems

Starting problems

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1Starting problems  Empty Starting problems on 29th November 2015, 8:11 pm

Rscozzy


been for a drive 20mins got back home turned car off
10 mins later came out to go to shop and it's just turning over won't fire done this a few times ..I have just put engine back in was thinking have got some connection wrong

2Starting problems  Empty Re: Starting problems on 29th November 2015, 8:19 pm

Mr B

Mr B
gtir technician
gtir technician
I would check ecu temp sensor & connector/wiring harness as I seen them bad causing serious over-fueling on hot start & also can keep fans running like other fault you reported .

3Starting problems  Empty Re: Starting problems on 29th November 2015, 8:25 pm

gtir_woody

gtir_woody
moderator
moderator
Did you change/ modify anything on the harness while it was out? Just making sure, so we know that it was untouched.

4Starting problems  Empty Re: Starting problems on 29th November 2015, 8:29 pm

Rscozzy


Have Changed temp sensor and thermostat done nothing to wiring harness is there two temp sensors1 I changed was 1 with spade connector

5Starting problems  Empty Re: Starting problems on 29th November 2015, 8:39 pm

Mr B

Mr B
gtir technician
gtir technician
^ you changed the sensor for the dash temp guage.
the ecu temp sensor has a 2pin plug .

6Starting problems  Empty Re: Starting problems on 29th November 2015, 8:54 pm

Spark plug spike

Spark plug spike
The red connector is the Ecu temp sensor, a bit of a fiddly job to change in situ but can be done.

Starting problems  Image10

7Starting problems  Empty Re: Starting problems on 29th November 2015, 9:03 pm

Spark plug spike

Spark plug spike

8Starting problems  Empty Re: Starting problems on 29th November 2015, 9:10 pm

Rscozzy


If I unplug it will car run ok

9Starting problems  Empty Re: Starting problems on 30th November 2015, 2:57 am

Mr B

Mr B
gtir technician
gtir technician
If you unplug temp sensor it runs in fault mode.
You best first off doing a fault code check just to see if throws up something useful.
You then could remove temp sensor & test it in some hot water with a thermometer & multimeter, want check harness/connector feed voltage contact condition etc. You could bridge the terminals on harness with 2000ohm resistor which would give ecu value of below 20degC so fans should be off & should start ok in sensible ambient climate. New sensor not expensive & can be had from £6 to £12 or grab some from junk yard as they used in loads of nissans.

10Starting problems  Empty Re: Starting problems on 1st December 2015, 8:44 pm

Rscozzy


Ecu temp sensor changed now starts when hot and fans working as should yeh even idles better

11Starting problems  Empty Re: Starting problems on 1st December 2015, 9:29 pm

nomad

nomad
Admin
Admin
Happy days mate ... glad its sorted ... Wink


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12Starting problems  Empty Re: Starting problems on 1st December 2015, 9:32 pm

gtir_woody

gtir_woody
moderator
moderator
Great news, always good when it's an easy fix

13Starting problems  Empty Re: Starting problems on 1st December 2015, 10:23 pm

Stu

Stu
Admin
Admin
Well diagnosed MrB. Rep point given.


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14Starting problems  Empty Re: Starting problems on 2nd December 2015, 2:11 am

Mr B

Mr B
gtir technician
gtir technician
Starting problems  WPFflags glad see R on the mend & an easy fix .

15Starting problems  Empty Re: Starting problems on 2nd December 2015, 12:00 pm

shroom

shroom
moderator
moderator
@Stu wrote:Well diagnosed MrB. Rep point given.

I feel sorry for Nomad I want to give him a rep point as Mr B is running away with it now yoursofunny


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