check engine light came on -worried!!!!!

[BOSSVY]

so found these other threads and theres 4 very common problems that cause this

1.) pcv hose has a crack in it , very common on vy series 1 and apparently rectified on series 2 , think i have a series 1
2.) old/Bad /worn 02 sensors
3.) E10 fuel/bad fuel - ran E10 for 2nd time in utes life last week
4.) exhaust mods - ive just had 100cpi cats put on

so i know ive got 3 and 4, now to figure out 1 and 2 get it fixed then clear code !!!

also read that the car idles rough and sounds bad at times this is exactly what mines doing !!! so off to check pcv hoses , oil level again , and 02 sensors, not that i know what im looking at lol

[Plenty]

so found these other threads and theres 4 very common problems that cause this

1.) pcv hose has a crack in it , very common on vy series 1 and apparently rectified on series 2 , think i have a series 1
2.) old/Bad /worn 02 sensors
3.) E10 fuel/bad fuel - ran E10 for 2nd time in utes life last week
4.) exhaust mods - ive just had 100cpi cats put on

so i know ive got 3 and 4, now to figure out 1 and 2 get it fixed then clear code !!!

also read that the car idles rough and sounds bad at times this is exactly what mines doing !!! so off to check pcv hoses , oil level again , and 02 sensors, not that i know what im looking at lol

Had you have mentioned this at the start it would have been much easier for people to diagnose, Check Engine Light + rough running usually indicates a failed Oxygen sensor, saying that though installing the new cats will also do it if they differ from what is already there!

[BOSSVY]

Had you have mentioned this at the start it would have been much easier for people to diagnose, Check Engine Light + rough running usually indicates a failed Oxygen sensor, saying that though installing the new cats will also do it if they differ from what is already there!

yeh sorry about that mate, my oversight , and car seems to be fine its only ran rough 2 or 3 times when waiting at a set of lights the revs all of a sudden drop rigt down .....

yeh old cats out and new 100cpi cats in ,that was about 3 months ago though ???

checked oil and was really low like im talking prob 1cm of it on bottom of dip stick , way out of safe range , added a litre and it got it within range , could the lack of oil set it off ???

i have no doubt in my mind also that the E10 played a part , as soon as this went in it started happening , just got some 98 octane in and fuel cleaner to go with it will monitor this too ..

its booked on friday thru a friend of a friend to read code and see what it says eg bad fuel , oil , 02 sensor etc and also check for an oil leak as the oil was really low .

theres no leaks on my driveway none at all .

would a v8 use a 1litre of oil in say 6 months ?? every day driver say 2-3 hrs per day plus the odd boot full here n there ?? seemed like a lot IMO , as i did a major service when i got it which was 6500 kms ago and oil was done and has gone down that much ??

ute only has 66thoukms 0n it

thx for all the responses

[daskip]

depending on where you are in sydney i have a OBD-II code reader if u need to find out quicker

[Plenty]

low oil will display it's own warning light, my money is on the Oxygen sensor! If it is running/idling rough and then the CEL comes on then it will be the sensor. Using that much oil is clearly an issue as well, best getting that thing into a mechanic asap!

[IJ.]

low oil will display it's own warning light, my money is on the Oxygen sensor! If it is running/idling rough and then the CEL comes on then it will be the sensor. Using that much oil is clearly an issue as well, best getting that thing into a mechanic asap!

As far as I'm aware none of the VY/Z V8's have Oil Level Sensors, they have a pressure switch/sensor.

[GKW]

ryde area mate thx

PM sent. 10 charXXXXX

[daskip]

i work in rhodes and if you can pop down there before/after/lunch break on work i can pull the codes for you if you like

[BOSSVY]

PM sent. 10 charXXXXX

thx mate got pm ( replied) see you tonight hopefully !!

i work in rhodes and if you can pop down there before/after/lunch break on work i can pull the codes for you if you like

appreciate the offer bud looks like i might be sorted , if not ill be in contact and organise something .

the power of a forum appreciate the generosity fellas good sh!t !!!!

[daskip]

how u go...........

[Micks]

As far as I'm aware none of the VY/Z V8's have Oil Level Sensors, they have a pressure switch/sensor.

That's right Ian no low sensor, but the PCM will throw that message to the Cluster when the pressure switch is out of normal parameter. Though if too low or too high eg sensor fault. than a non auto resettable DTC will throw until the problem is fixed or reset.

[BOSSVY]

how u go...........

gregs a busy man and i am for next few nights too at the time we could meet up so looks like im headed your way !!!!

i can come down there today at between 1-2pm is this ok ?

call/txt me on 0414 717 111 with your address etc as i wont be back on here appreciate the help !!

NOTE greg/GKW tried to PM but your messages are full , thx for your help mate !!!

[BOSSVY]

so took it to a mate of a mate and he put some red hand held scanner on it and connected it under stearing column somewhere did what ever checks and couldnt find anything , and as always when you take it to the mechanic when i tried to show him the check engine (which is normally on start up ) it doesnt do it .....

car is still idling rough but appears to be driving fine .... i put more oil in it and it is where is should be so could it of just righted itself? but that wouldnt explain rough idle ??

utes running hotter too although the gauge doesnt say it i can feel it with the heat soak coming through the car never been this bad

got it booked in with him friday now so hopefully he finds the problem !!!

priced parts 175 for oil pressure switch and 105 for each 02 sensor x2 then of course labour soon starts to add up .....

there goes my otrcai again !!!!!

this is starting to get fuking annoying !!!

[aratic]

Suggest you get famililar with ebay mate.

o2 sensors are less than $100/pair delivered.
Genuine oil pressure switch is around $70.

Both can easily be done yourself.

If the check engine is at start up only, is may be the coolant temp sensor. With the AC turned off, do the fans start running straight away? If so its a dead giveaway thats the problem. Does the engine light then switch off about 2-3 mins after youve been driving the car?

The coolant sensor wont log engine light faults in the system, hence why he may not have been able to find it.

[Angeldust]

Probably not going to help you, but may help others going through this thread.


My VY had a cracked maf pipe caused simply by overtightening it at the airbox end.
It was only a tiny crack, but was enough to randomly throw a check eng light, and
make it run slightly rough after the light/fault code came up.