GU 3.0L Lost power / Air flow meter??

Turbos
Get your mate to check the fuel filter first, I had a similar problem earlier this year and It cost me $170 to find this out thanks to my 'friendly?' Nissan dealer, anew fuel filter =$50
Mike

Michael,

Not another 3 litre problem, just someone doing something they weren't supposed to be doin, a post not long ago indicated that its a No No to use oiled filters with this set up as it throws the air/fuel reading right out.

Mick

Mick, yes ur right, i didnt read the post properly, of course the oil is the likely cause oopppppppp.. Having trouble getting my foot out of my mouth..... LOL

Truckster, A diesel mechanic i know, said you can buy just the sensor. The $1000+ part is the whole air ram plastic bit, the complete assembly . If you push Nissan they will sell just the wire grid sensor part for about $240.. I believe this to be correct as this is what the dealers use for warranty replacements... Michael

Ps,, so i'm told

Have also read somewhere on this forum that the air flow sensors can be cleaned with spray on carby cleaner and let dry.

I'd give that a shot first if the sensor is said to be stuffed.

I don't know about it being a big no-no.

I have had a two stage oiled Finer Filter in my Jackaroo for the past four years without a problem. The air flow meter is right at the airbox and is still clean and functioning.

Petrol V6 that is ... a/f meter on Jack diesel is at the throttle body

Cheers for the replies, I'll keep ya's posted on how it goes. The nissian dealer did mention something about the fuel filter but i'll keep you informed. I have a 2000 TD jackaroo (my patrol mate bags me all the time yet were dead equal when we drag off the lights!) with a K&N and i don't think it has affected my engine - although mine is getting repaired for a suspected oil regulator switch. I think I noticed GU's having a sensor immediately after the air filter (am I right??) whereas the jack has it's first sensor at the throttle body which is subject to oil problems from the heavily oiled foam filters (causes check engine light to go on). Therefore since the K&N is only lightly oiled I think the sensor being so close to the filter (together with the oil or course) could be causing the problem?? anyhow its an interesting problem so i'll lets you all know ASAP. Cheers for the responses.

Thanks for that tip Andrew, I will file it for future needs.

Andrew - i'm the mate with the GU patrol thats playing up over here in Perth... can you give contact details and/or prices of new air flow meter or just the wire mesh replacement?

Good to see you learnt how to use a computer/login Mr Chris now I don't have to do the dirty work for ya. Now would some one please convince him to get on the bleep tonight!!

OK Fellas - from the white pages:

DENCO DIESEL AND TURBO
Fuel Pump, Injectors & Turbo Chargers
364 Edward St Wagga Wagga 2650 (02) 6925 4348
OR... (02) 6925 3722
Fax (02) 6925 3314
Internet www.dencodiesel.com
Email sales@dencodeisel.com

I met up with these guys at the Diesel Information Day run by Cooma Diesel in canberra - struck me as pretty straight up and down guys. If there was a serious problem with my car, I'd be on the phone to them no questions. They did mention the price for the meter, I seem to recall it being around $450, but don't hold me to it.

Cheers and good luck
Andrew

Oh and by the way turbos ... if you have to convice your mates to get on the bleep ... find some new mates!!

Avagoodone
Andrew

Thanks for that Andrew. Turbos is the ashamed owner of a problematic Jackaroo, the majority of his closet consists of Ford clothing. He's a mixed up boy what can i say!

I'll see you at the lights Chris!!! But most likely in my rear-view mirror!!!
Even more so now that ya turbo won't spool up!! problematic patrol ay.

I just read your post, sounds interesting. I got an email from Chris and the mechanics said the air flow meter SEEMS ok and that the turbo is failing to spool up. He did not mention why this is happening but could it be lack of fuel (ie lack of exhaust gas) or could it be buggered ball bearings in the turbo (? if I know) - Chris was told that modern day turbos do not require idling after running as some mechanism?? maintains oil pressure to the turbo bearing after shut down. In dis-belief I had a turbo timer fitted. I also took the inlet housing off my turbo, turned the engine on and then reved the engine to 3K. I turned the engine off and wached the compressor turbine spin for at 30 sec. I then immediately turned the engine back on. Buggered if i'm going to risk a 2.5 K turbo, when the timer cost $80. For Chris' sake I hope its not a turbo problem as I believe those garrett turbos (ball bearing) are not rebuildable.