SERIOUSLY hesitating & back firing!

[MaLicE]

unlucky mate hopefully it will be something simple! could be something like engine loom melted or something... im sure pip will sort it for you though!

[Dizz]

Well I just decided to pull out the plugs to clean them & have a look at the condition of each one (as I\'d only taken one out before). What a concoction (sp) of plugs I found. This is how it looked
 
 
T - BUR9EQ ---- Greddy 11
 
L - Greddy 10 -- Greddy 11
 
(viewed looking straight on at the plugs obv)
 
I\'m sure this can\'t be helping running matters???
 
So next question is what plugs do people use when running the car in? I\'ve yet to go over 2,500-3,000 rpm as I\'m only half way through running in so I\'m sure that doesn\'t work well with the 11 heat range plugs...

[Dizz]

Woohooooooo! We have a result :Thumbsup!
 
It was the 11 heat range plugs that were in the rear rotor! Obviously because of my not driving over 2,500 rpm they were fouling up & not getting the heat needed to clean themselves. I have put 9s in all round now for the last bit of my run in (thanks AndyGen3!)
 
YAY!

[MaLicE]

glad you got it sorted! i would have a word with the people who built the engine and ask why they stuck odd plugs in...

[AndyGen3]

Glad you got sorted man