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Car not starting when hot

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Old 02 June 2009 | 10:41 AM
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Default Car not starting when hot

Hiya I have a classic running simtek over the weekend I was out for a drive and had done about 60miles when I pulled on for petrol yes I put the right fuel in LOL when I when I went to start the car it turned over but did not catch I left it for 20 mine then of fired up start away and was running perfect any ideas why that would happen please? Sorry for the long e-mail guys
Old 02 June 2009 | 10:47 AM
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Hi mate,

I have simtek and i had a couple of teething problems, when my fans cut in the ecu would richen the idle map and flood the engine, it would be difficult to start for a few minutes, was it running clean before you turned it off?
Old 02 June 2009 | 10:54 AM
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Yep had no problems with it do both of your fans kick in or just 1 and where have you mounted the cold air plug the gold sensor thanks
Old 02 June 2009 | 10:57 AM
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yes, both my fans kick in, I have a front mount so have monted the air temp sensor in the ally pipe as close to the throttle body as possible, almost true charge temp,
Old 02 June 2009 | 11:08 AM
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I have a front mount also how have you mounted it and do to have a pic please
Old 02 June 2009 | 12:24 PM
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i'm having the same issues but have been told my version 4 does not need a temp sensor. am very interested to see how its fixed.
Old 02 June 2009 | 12:26 PM
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No pics I'm afraid and car is the bodyshop at the min, you will have to get a boss welded into the pipe so you can screw the sensor in, just as the pipe bends round and connects to the throttle boddy you should have room for it there,
Old 02 June 2009 | 01:04 PM
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Thanks how much was it to have the boss welded in and from where
Old 02 June 2009 | 03:48 PM
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SP84 any garage with a TIg could do this for you and will not cost much 20 or 30 max i would say.

Hope your well, have called you a few weeks ago but no answer.
Old 02 June 2009 | 04:04 PM
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Did you speak to Simon aka Jolly Green regards to this? And have you made any changes to the existing setup that has brought this on?

Or could it just be the crank sensor to blame as it may be at the end of its life causing no spark when the OP turned it over???

As i wouldn't think it was the charge temp sensor which is the issue here the OP's car was running ok, so it has to be something that has become defective??
Old 02 June 2009 | 09:06 PM
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most likely cam or crank sensor.. car has been perfect for a year so unlike to be anything else.

Simon
Old 02 June 2009 | 09:34 PM
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Thanks Simon all ready spoke to you on e-mail. Raj
Old 02 June 2009 | 09:40 PM
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thinking out loud.. if the non hot start is consistent then if you pop the car down I can confirm cam and crank and as the ecu will show sync errors and also should whether cam or crank sensor at fault.
Alternatively I have a spare cam and crank sensors here.. welcome to pop down and borrow them.

Simon
Old 02 June 2009 | 09:51 PM
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It only happened on saturday and bank holiday after driving about 60 miles and being stuck in traffic for 30 mins slow moving thanks for the offer
Old 02 June 2009 | 09:53 PM
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Hows the car running now Raj? You still having the problems?
Old 02 June 2009 | 09:56 PM
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On and off how are you long time you brought a car yet
Old 02 June 2009 | 10:12 PM
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Oh yeh, i have a car, just working on a few things at the mo with it. Will get there in the end, but i'm in no rush as i've got a few things to do 1st. When we meeting?
Old 02 June 2009 | 10:12 PM
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Or should i say when you inviting me over for samosas? hehe
Old 02 June 2009 | 10:15 PM
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When ever you want bruv you spoke to jag
Old 02 June 2009 | 10:22 PM
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Yeh i have the odd chat with him here and then this weeks a very hectic week as have 2 exams left so just keeping low profile and studying. So maybe catchup next week or something i will give you a call after the exams though.
Old 02 June 2009 | 10:25 PM
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Cool bruv to cre and good luck
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