R32 missfire between 3-4k rpm - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

Berry · 25th August 2008, 06:50 PM

Recently had ECU problems, which led to non start. Found a water leak and replaced the old ECU with a 2nd hand r33 unit.

All started up fine!

BUT!

Now the car miss's between 3-4k then clears and pull hard, as it did before. Idles fine, drives fine before 3k then coughs and splutters thru to 4k then takes off again. Quickly checked for boost leeks but have not touched anything along the intake lines.

Any help will do

Paulpen · 26th August 2008, 04:25 PM

Quote:

Originally Posted by Berry

Recently had ECU problems, which led to non start. Found a water leak and replaced the old ECU with a 2nd hand r33 unit.

All started up fine!

BUT!

Now the car miss's between 3-4k then clears and pull hard, as it did before. Idles fine, drives fine before 3k then coughs and splutters thru to 4k then takes off again. Quickly checked for boost leeks but have not touched anything along the intake lines.

Any help will do

R33 unit on a R32 ?

Does that work ?

ru' · 26th August 2008, 05:41 PM

MAfs/coilpacks?

Chi · 26th August 2008, 06:49 PM

MAFs?? can sumone shed sum light to me please, got same probs mate just waiting on my splitfires to come through as i checked out everything else.

rasonline · 30th August 2008, 01:13 PM

is the R33 unit a stock unit? are you sure it's not an aftermarket unit that may have been tuned?

Berry · 1st September 2008, 08:27 AM

Quote:

Originally Posted by rasonline

is the R33 unit a stock unit? are you sure it's not an aftermarket unit that may have been tuned?

Belived to be std.

25th August 2008, 06:50 PM	#1 (permalink)
Berry GTR Register Member Join Date: Apr 2008 Location: Taunton, Somerset Posts: 64	R32 missfire between 3-4k rpm Recently had ECU problems, which led to non start. Found a water leak and replaced the old ECU with a 2nd hand r33 unit. All started up fine! BUT! Now the car miss's between 3-4k then clears and pull hard, as it did before. Idles fine, drives fine before 3k then coughs and splutters thru to 4k then takes off again. Quickly checked for boost leeks but have not touched anything along the intake lines. Any help will do

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26th August 2008, 05:41 PM	#3 (permalink)
ru' New Users Join Date: Feb 2007 Location: Black R33 GTR V-Spec Posts: 1,878	MAfs/coilpacks?

26th August 2008, 06:49 PM	#4 (permalink)
Chi GTR Register Member Join Date: Mar 2008 Posts: 34	MAFs?? can sumone shed sum light to me please, got same probs mate just waiting on my splitfires to come through as i checked out everything else.

30th August 2008, 01:13 PM	#5 (permalink)
rasonline GTR Register Member Join Date: Mar 2005 Location: South-East Africa Posts: 1,497	is the R33 unit a stock unit? are you sure it's not an aftermarket unit that may have been tuned?