VR 94 wont start unless throttle fully open ... HELP!
what the subject says ive got error codes 44 and 56 which are o2 sensor lean and engine running lean,
any ideas what could be causing this , also when driving check engine light will come on and if i change to neutral car will stall.
its an auto
any help will be greatly appreciated.
It could be a vacuum leak somewhere.Check the rubber vacuum lines around the engine and on the charcoal cannister and cannister purge solenoid for disconnections or splits,cracks etc..Also check the vacuum reserve tank under the left front guard.It looks like a black plastic ball.It should have a vacuum hose going to it,make sure its connected.Also a stuffed brake booster can cause a vacuum leak.Has the "feel" of the brakes changed recently.If so,its most likely to be a leaking booster which will cause the engine to run crook as well..
Last edited by Brett_jjj; 14-09-2010 at 12:58 AM.
Throttle body might be dirty?
What does the vacuum reserve tank thats located near the bumper do though? There is just a big vac line going to it and nothing else
The vacuum reserve tank is mainly there to hold vacuum so when you open up the throttle a fair way,like when overtaking, or going up a hill etc,the vacuum doesnt drop off too much,which then causes the heater settings change positions (face to floor etc).Thats why the heater settings sometimes wont work,or will change positions when you get a vacuum leak around the engine, the heater uses the engines vacuum to control its airflow control flaps and heater tap etc.Closed throttle =high manifold vacuum.1/2 throttle to full open throttle =low manifold vacuum.Originally Posted by Z2TT
its not the throttle body , ive checked that.
will check the reserve vaccum tomorrow when the weather isnt so shit house.
brakes are fine and so is booster all lines to that seem fine as well.
thanks
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tried your fuel pressure regulator???
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where bouts is that and how do i test it?
i was thinking possibly its an injector problem.
checked all vaccum hoses all seem fine
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thats were it is,, not the best pic but yea
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cheers i was looking at that , how would it cause my problem if it was faulty?
there appears to be a similar looking thing sitting behind the throttle body i think
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if its not working correctly it could cause a drop in the fuel pressure witch in turn causes starting issues etc. basically not getting enough fuel to start...
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new issue can sometimes start without throttle but splutters to life , but as soon as i put it into reverse, neutral or park it stalls motor
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again fuel pressure reg, if its not getting the correct fuel pressure (enough fuel) it will stall,,
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cheers , i wanna check out the iac aswell
is there anything you changed recently with your car? didnt change your memcal by any chance? but if not then i would bet on not enough fuel like Super_Low 91 said. did the problem come out of nowhere or did it gradually get worse and worse over time?
dont know just bought it and was goin fine when i test drove and all, next days its just been a pain in the arse
Mine did exactly that, ended up being the injectors
Dont Take Life Too Seriously, You Never Get Out Alive Anyways.
2002 Series II VX SS - 6spd - 5.7L - Black - Red Leather <3
was it stalling when you put in park and all the rest?
and what did you do , get them cleaned or just replace
Update
getting shit house fuel economy bout 300 k's to a tank ,
so im thinking its the regulator. also pulled the vac hose off it and there was fuel coming out.
get a new one soon and see how it all goes
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Like i said ages ago..
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new fuel reg fitted , its fine now . thanks for all the help
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Not a problem, glad to help..
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