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check engine light is on!whats wrong?

cyrus fang

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i just borght a 2004 holden VY03A 2 weeks ago. 100km. and i did a big service. everything is fine but got one problem! when i driving everything is fine...drive like new....but stop without turning off the engine like 10mins. the check engine light is on! anyone noe whats wrong with my car!?
 

caaf

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It could be any number of things.. Mind I do sit around an under voltage issue maybe... What testing have you done already.. What's the error codes are you getting?
 

colgf

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s/charged v6 HR Holden, s/charged v6 EH Holden,
my guess is it is an Oxygen Sensor problem. There are 2 of them in exhaust manifold on a v6 engine , about
$80 each , easy to change .
 

Chrisvyss

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could be anything o2 sensor throttle sensor oil pressure sensor to many bloody sensors
 

Not_An_Abba_Fan

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Try tightening your battery terminals.
 

SkidMarks

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mines the same now. i pulled off my whole air intake from throttlebody to box then when i reassembled the engine light came on. what could be the cause? 02 sensor? throttle sensor? help me too haha.
 

colgf

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you may have an ambient air leak into the inlet manifold somewhere after the MAF sensor , check your rubber tubes to the heater actuators at the rear of the inlet manifold & the brake booster vacuum hose . make sure the inlet ducting is airtight to the throttle body. Still reckon its the Oxy sensors though......
 

Not_An_Abba_Fan

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Did you plug the air temp sensor back in?
 

SkidMarks

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yeah i did lol. possibly a leak somewhere, may not be air tight. but im guessing ive definitely buggered a sensor along the intake somewhere.
 

carlz04

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Our check engine light started coming on then the motor blew up (injector was staying open and sump had a hole in it)
 
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