Hi guys i live in the UK with a Evo X running 450 BHP fully forged as well, anyway went to the petrol station to get fuel went to start the and it didn't start first go, second time it did but had to use my throttle pedal as well, has happened before in different places, is it my relay? Can you guys me??

 

Is it only when you're filling up with fuel, or does it ever happen on other "short" stops of similar duration? Have you ever replaced the factory relay? If you have an 08 (not sure about 09+) there's no reason to not have done that already. There are ample threads and discussion about it.

 

Hi No does it at different times not just filling up with fuel, Also 2008 i have not replaced the factory relay, can you please advise me what relay?

 

Also check your MAF sensor. My car decided to not start one day and it turned out to be that. Swapped it with my friend's MAF and fired right up after going through the trouble of checking for spark and fuel. It also started having trouble starting up before that every now and then where it would want to stall at idle until I give it some gas to stabilize it.

 

Multiple threads on fuel pump relay. You should take care of this immediately, even if it isn't your source of issue on this particular problem. At least take it out of the equation.

https://www.evolutionm.net/forums/ev...-page-4-a.html

https://www.evolutionm.net/forums/ev...ur-engine.html

https://www.evolutionm.net/forums/ev...relay-tsb.html


Besides this... what sort of programming upgrades are you running?

 

Before I got rid of my Evo X, I had the same problem, ended up in a mitsu dealer in Salt Lake City Utah with a dead starter

 

On cold or warmed up engine or no matter?

 

myearwood173, its sophia-x from the mlr , i had the same problem, mitsi gave my battery a full charge when it was last in, and it seems fine now, as soon as i got my car i bought the blue upgraded fuel relay and never had a problem with that in my 2 months ownership now , the panasonic batterys are pants....thats what was causing my problem

 

I'm assuming you have aftermarket injectors. Make sure your startup injector pulse width tables are tuned properly also.

 

Hi Sophia so was it your relay the problem or the battery?
I've just ordered 4 Blue Relays as well as a mfi one too from JNZ Tuning
I didn't know you was a member on here as well?
Thanks Matt.

 

Only warmed up engine, but doesn't do it all the time, only when the car feels like doing it

 

it wasnt the relay, it was my battery, they said the charge was really low , relay was replaced before i was even insuredon the car lol, try changing the battery or getting it replaced under warranty iv been on here for a while these lovely americans know their stuff lol sophia.

 

Hi Sophia,
Yeah they should do know there stuff .
I will try and get a new battery under warranty
Thanks again Matt.