Cold Starting issue soon after twintake install...

[rich83]

But, if these engine ECUs adapt as you 'run in' new hardware, then it might not have shown up as an issue straight away.

[john_o]

any chance the MAF is now messed up following install? not sure how much input it has in the cold start cycle ......

[h4rdy]

I was advised it could be the MAF but I bought a revision 'B' recently and I got a minor increase in MAF reading but nothing really changed.
Ill keep the new one on but when I put the ITG on ill put the old one on first then if its rubbish ill put the 'B' on.

[john_o]

flash back to OE then again back to SC map so it starts from a 'clean' starting point and learns with the intake already fitted?

[Russ_leeds]

I had the same steve when i fitted my itg (flat spot/power loss at about 5k). with mine its more pronounced in higher gears, but i had no rough idle issues.

Dave yhpm

[Hedge]

[alackofspeed]

Where can i buy these New NGK spark plugs from? are the dealers selling them?

I've got some NGK temperature 8 plugs with about 3000 miles on them. I removed them just as a precaution as my car is a K03 car with a stg 1, and most of my driving is sub 2500 rpm pootling to work. I fitted the 7s in case the 8s started to carbon up.

You can have 'em for the cost of postage if you want to rule out the plugs. Or if you're ever nr Wimborne, just pick 'em up.

edit - should have read more of the thread, as I later saw you'd bought some plugs.

[Hedge]

Alterations to ecu maps are quite commonly required following the installation of an intake. Cant see it being the cause of a cold start issue though.

I did speak to Superchips and they said that their stage 2 map wouldnt require any adjustments having a CAI to suit their Stage 2 Map??

Yes but your car isn't running the normal stage 2 as the fuel pump couldn't keep up. 

To be fair Ian, the car has been 100% Terrific infact for 10 days or so since the intake was fittedwith no power loss or Bad idling, so the more i think about it, its not going to be a map or fueling issue as it would of been an issue from day 1.
Plugs are on there way, ill go from there, if not the Intake and Engine cover will be up for grabs as a bundle ..

I'm sure if you say it for long enough then you will believe it. 

[Saintsteve]

flash back to OE then again back to SC map so it starts from a 'clean' starting point and learns with the intake already fitted?

I flashed it back to the oem stock map last night and to report, the car is the same.. At high rpm as well, so rules out fuelling issue your be gladto know Hedge 

Awaiting Sparks....

[Saintsteve]

But, if these engine ECUs adapt as you 'run in' new hardware, then it might not have shown up as an issue straight away.

Yes it would adapt, but would of learned it after a couple of ignition cycles Rich.

Not after nearly 2 weeks with no performance failings prior I find the hard to except...

[MAT ED30]

Just pop the plugs out and check em as it sounds like its them to me

[RedRobin]

.
Have you asked JKM their thoughts, Steve?

Hopefully it's an easy fix like plugs rather than fuel pump but that's why JKM turned down my Revo settings after fitting the much more demanding Twintake, so I wouldn't have the expense of a HPFP. A more efficient aftermarket air intake is going to change your air to fuel mix. But I don't know how the startup issue would be caused. Surely the map plays a part?

[Ledreyer]

Check if the air mass sensor is in the right direction!

[Saintsteve]

Check if the air mass sensor is in the right direction!

VRSCarl fitted it, so I hope so

[Saintsteve]

Just pop the plugs out and check em as it sounds like its them to me

I will, may well be loose, as I've found before the plugs loose...