Rb26 Misfire

[JiN_MaN]

Possible things I can think of:

Loom from Engine > Ignitor

Ignitor

Loom from Ignitor > Coilpack

Coilpack

Coilpack Tips

Sparkplugs

o2 sensors

AFM

Injector stuck open

Intercooler leak

SO Ive started going through and changing items,

Loom from Engine > Ignitor

Ignitor

Loom from Ignitor > Coilpack

Coilpack

Coilpack Tips

Sparkplugs - cleaned and gapped, will replace with new ones asap

o2 sensors Cut and rejoined to install

AFM

Injector stuck open

Intercooler leak

Car had dead o2 sensors when bought, they have been replaced at the same time as some other items:

2 New injectors, all new o-rings

02 sensors replaced

FMIC taken off

Clutch installed

Intercooler pipes around turbos taken off.

Car is running very rich, any other suggestions as too what it could be would be much appreciated,

Edited May 16, 2009 by JiN_MaN

[JiN_MaN]

Loom from Engine > Ignitor

Ignitor

Loom from Ignitor > Coilpack Tested other one, no difference

Coilpack Tested other ones, no difference

Coilpack Tips New ones fitted

Sparkplugs - cleaned and gapped, will replace with new ones asap Replaced

o2 sensors Replaced but cut and rejoined wires to install

AFM

Injector stuck open

Intercooler leak Looked over all seems good.

+ Reset ECU

Edited May 16, 2009 by JiN_MaN

[Moodles2]

Bad batch of fuel?

How does it idle (and what does it show the vacuum pressure as when idling)?

If you don't run a FPR, look into the pressure regulator

Does your ECU give you an error code(s)?

How is compression in each cylinder?

Edited May 16, 2009 by Moodles2

[Smooth_Garage]

fuel filter... ?

running standard ECU?

[Don Dada]

Is the ignitor grounded?

If not do it!

[JiN_MaN]

Bad batch of fuel?

How does it idle (and what does it show the vacuum pressure as when idling)?

If you don't run a FPR, look into the pressure regulator

Does your ECU give you an error code(s)?

How is compression in each cylinder?

fuel filter... ?

running standard ECU?

Is the ignitor grounded?

If not do it!

Will look into all these suggestions today and update, Thanks for the help, keep it coming, Ill take ANY suggestions,

Standard ECU, supposedly remapped my mines

Edited May 17, 2009 by JiN_MaN

[Moodles2]

Those jap chips are tuned for 100ron, pretty sure the Mines chip is 100ron too

[JiN_MaN]

True but I cant even get it to idle with BP 98 octane.

Every plug is wet bar number 5, some worse than others. Front 3 the worse, NEW copper plugs, gapped to .8

[Beer Baron]

if it wont even idle properly it's possible your ecu was tuned for some other set-up. try a standard ecu to eliminate that from the equation.

[JiN_MaN]

Ill also add, I started and drove it in Japan, just up and down the road and it idled fine, but when I first picked it up in aus it had the front bar moved and the intercooler hoses on both ends off. It was all removed in Japan.

Havent got it to idle since, Compression test came up with 155-153psi across all cylinders.

[Moodles2]

Could have a intake manifold gasket leak, spraying aerostart or brake cleaner around the throttle body gaskets and the manifold gasket and see if the engine noise changes pitch.

[Beer Baron]

ok, that changes things. if the only thing that's changed since it was driving fine japan is piping then most likely you have a leak somewhere, or something is not connected properly (ie hoses back to front, swapped etc). you need to go over all the piping again. why was piping removed between here and japan?

[JiN_MaN]

ok, that changes things. if the only thing that's changed since it was driving fine japan is piping then most likely you have a leak somewhere, or something is not connected properly (ie hoses back to front, swapped etc). you need to go over all the piping again. why was piping removed between here and japan?

I assume it was to remove the front bar for shipping, and they hadn't done it before, all bolts to remove the front lip from the front bar had been removed and kept in bag.

[Beer Baron]

the symptoms really do point to an air leak. even more so considering the chain of events:

car started, idled and drove fine.

you left car

piping was removed/messed with

piping was replaced

car wont idle, run or drive properly

I know where I'd be hunting the problem. leaks wont always be visible to the naked eye. go over every piece of induction piping.

[JiN_MaN]

Alright thanks, Ill start searching high and low for one.

Fingers crossed

Edited May 19, 2009 by JiN_MaN

[rad100]

im having the same issue with my CA18DET in my ke70..

running in previous car, now iddling like crap!

i feel your pain

[topher_]

Why don't you do a boost leak test? Go out and buy a cheap compressor from super cheap.