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GQ 4.2 fuel injected wont rev past 3000
GQ 4.2 fuel injected wont rev past 3000
hey guys
just after some help pretty urgently. my gq wont rev past 3000 anyone got any ideas?
cheers boyd
just after some help pretty urgently. my gq wont rev past 3000 anyone got any ideas?
cheers boyd
gq wont rev past 3000
could be a couple of things.
air filter
fuel pump
air flow meter
Bit had to check fuel pump and air flow meter with out the right tools, but take the air filter out and run it to check that.
air filter
fuel pump
air flow meter
Bit had to check fuel pump and air flow meter with out the right tools, but take the air filter out and run it to check that.
RIGHT FOOT FOR GO!!!
bogged wrote:well depends how long it takes to save the $1500+ to get it fixed.boydsierra wrote:and if its the fuel pump is it alright to drive for awhile like this or replace it straight away?
far out where you going for work, do you use your own lube.......
the pump is like $150 ish fit your self. it is most likely the check valve in the pump is bypassing,this gives you this problem with injected 4.2 95% of the time. i would say dont drive.........
build em tuff, drive em ruff.........
Custom 4wd Creations Brisbane
0438279890
Custom 4wd Creations Brisbane
0438279890
yeah we had this happen to an 06 territorry, it got progressivly worse, until it didnt drive at all when you put it in gear.bodes-sh wrote:i'm not sure if these run a cat converter, but if they do it could also be this
I fits your cat, it will slowly get worse, If you drive it, you will carbon up your combustion chambers... ( not detrimental and you can steam clean away the carbon it with small amounts of water down the intake, you MUST do this without the cat fitted though!!!!!)
If its your pump, and its runs ok under 3 grand, i cant see any reason why you cant keep driving it, at 3000rpm you are not going to lean out the engine and do damage to anything
reversing the polarity of the pump wires works sometimes to " flush " the pump.
as a side note, you can drive all you want with a busted pump if your patrol has LPG
Jes
ATTACH BROKEN TOYOTA HERE--->
DUCATI <-----Worlds best warning label
DUCATI <-----Worlds best warning label
i suppose if you payed 800$ for a pair of shocks on a weekend warrior patrol, you must not mind being raped to the tune of 1500 for an efi pumpbogged wrote:well depends how long it takes to save the $1500+ to get it fixed.boydsierra wrote:and if its the fuel pump is it alright to drive for awhile like this or replace it straight away?
Jes
ATTACH BROKEN TOYOTA HERE--->
DUCATI <-----Worlds best warning label
DUCATI <-----Worlds best warning label
babababahahahaha....................jessie928 wrote:i suppose if you payed 800$ for a pair of shocks on a weekend warrior patrol, you must not mind being raped to the tune of 1500 for an efi pumpbogged wrote:well depends how long it takes to save the $1500+ to get it fixed.boydsierra wrote:and if its the fuel pump is it alright to drive for awhile like this or replace it straight away?
Jes
build em tuff, drive em ruff.........
Custom 4wd Creations Brisbane
0438279890
Custom 4wd Creations Brisbane
0438279890
I had a fue injectected nissan do this to me once, it was like the limiter was se at 3000 rpm, turned out to be the Throttle position sensor, had some water in the plug, gave it a blow out with compressed air and pluged it back in right as rain. maybe give all ya plugs on ya sensors a blow out and a wiggle, hope it helps.
Tom
Tom
yeah that too,TomSeth wrote:I had a fue injectected nissan do this to me once, it was like the limiter was se at 3000 rpm, turned out to be the Throttle position sensor, had some water in the plug, gave it a blow out with compressed air and pluged it back in right as rain. maybe give all ya plugs on ya sensors a blow out and a wiggle, hope it helps.
Tom
and another is a blocked Mass airflow sensor, ( covered in mud)
can also give similar symptoms.
Jes
ATTACH BROKEN TOYOTA HERE--->
DUCATI <-----Worlds best warning label
DUCATI <-----Worlds best warning label
if you pull the actual sensor out ( 2 philips head screws) and hit it with carby clean, t will probably fix it.boydsierra wrote:hey guys
thanks for all the help got it all sorted out it was the airflow meter. used a mates 1 to make sure.
cheers boyd
also check that the contacts are not corroded in the plug/sensor.
jes
ATTACH BROKEN TOYOTA HERE--->
DUCATI <-----Worlds best warning label
DUCATI <-----Worlds best warning label
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