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The mkiv Supra Owners Club

small issue with warm start


Shizzle

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hi peeps just got a small issue i was wonderin if i could get some advise on which is more annoying than anything..

 

from cold the car starts fine everytime.. however if the car is warm i turn the key and car just delays starting for what seems like forever (realisticaly it varies in time say 5-10+ seconds), if i persist and keep turning the engine over eventually she starts but i have to get the gas on otherwise she goes to stall straight after firing. One time i didnt give it gas and the car died straight after starting, and it took several attempts of turning the engine over to get her started which she did eventually really hesitantly

 

link to the car spec for those that dont know it..

http://www.mkivsupra.net/vbb/vbpicgallery.php?do=view&g=3115

 

it cranks fine, i.e turning over normal speed so doesnt sound like iffy starter or battery, so im thinking along the lines of a temp sensor and over fueling? atm the car is still being run in so hasnt been mapped yet, could it just be a simple issue which would be ironed out after mapping? but im a mechanical retard so any other suggestions?

 

after going out for a long drive the other night i switched off and though id just see if she would start again and fired up as soon as i turned the key so it doesnt always hesitate when warm, but just my luck always seems to happen when i have people watching :rolleyes:

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autronic SMC, the car was mapped originally.. but due to problems has had more work done, i.e new piston rings etc. so will need to be mapped again once ive done a few more miles.

 

was kinda hoping it was just a case of the mapping but was wondering if there were any over idea's people had

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It could be a number of things but as you might end up causing more issues by trying to solve that. If it's becoming problematic you could always get your chosen mapper (presumably Ryan ;) ) to do some base work on the map so that the warm start works. It'd also make it possible to datalog during the start issue to identify if there really is another issue.

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yeah, i wanna get the car up to ryan once i get a couple more hundred miles on the clock, as hes so far away wanna get everything done in one hit. At the moment its not a major prob as it always starts and its not my daily driver.. just is annoying more than anything, cheers for the info anyway mate we shall see how i get on

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