Need Help

[newboost]

i have a r34 gtt auto with 117k with the following list of mods

spiltfire coil packs ( have only done about 15000K)

trust turbo back exhaust

greddy ebc set to 11 psi

k & N panel filter

(stock turbo)

so basicly not many mods as you can see.

The problem is that when I start the cold start the car it will shut of straight away, I wait about 10 seconds start it again it goes up to aout 1000 rpm then down to about 400 rpm then up to 600 rpm then bounces between the 2 for a little while. I can drive the car but it seems down on power. It wanst to stall when I come to a stop at a coner but still keeps running.

I have replaced the spark plugs, O2 sensor, Air temp sensor, Fuel fiter & air flow meter.

I have also cleaned the throttle body & aac.

I am using ecu teck to check for error codes and I am not getting any error codes just the 55 code ( all clear)

need any ideas please

Edited January 28, 2014 by newboost

[Ben C34]

Check your tps is adjusted and behaving correctly.

[nicksamaniac]

Just a suggestion as I've had almost identical issue in the past.

Check your engine temp sensor connection, (the 2 pin square plug not the Single wire plug)

If it's not connected properly it won't give cold start enrichment, it also won't throw a code.

Mine had a broken clip and was on but wasn't making contact.

[newboost]

Update,

Checked the Tps all is ok.

Just checked the ecu and found this extra plug on the main loom and noticed the there are wires that are joined and go no were.

Edited January 30, 2014 by newboost

[newboost]

Here is a pic of the plug of the ecu loom

[Ben C34]

I would be interested in knowing what that is as my stagea had that plug added. But mine runs sweet so I think you don't need to worry about it being there.