Solved 3.0L patrol power problem

Submitted: Tuesday, Jan 13, 2004 at 10:24
ThreadID: 9711 Views:1439 Replies:4 FollowUps:3
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My fathers car has had this low power, turbo lag light flashing on dash problem for 1 year now, As it was out of warranty, we never bothered!
The power loss and turbo lag became so bad we had to fix it.
It was a dog on take off, then at 2500 rpm, it took off when the boost cut in, which shouldnt happen, as it has new design variable turbo pitch, which means boost should be constant right through the rev range.
After changing the fuel filter it seemed to go away, but a month later would come on again, or when stomping it up a big hill.
We checked all the fault codes ourselves by counting the flashes on the dash by shorting a terminal out under the dash, which you can do as well, just get a gregorys manuel, and its step by step.
The throttle sensor and pressure sensor came up, but when we stripped and tested them they were fine.
Jason from Nissan in Granville came to our rescue, and said the actual turbo might be the problem, as theyve changed several already.
He plugged his computer in and couldnt find any problems, turbo wasnt changed.
We took a stab in the dark and changed the AIR FLOW SENSOR, and guess what, it spun the wheels again!
No computer would pick up the fault with the sensor.
If your trucks still under warranty, get them to change it, as we havent bought a new sensor yet, and are working on getting it under warranty, as ours is run out.
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Reply By: adrian- Tuesday, Jan 13, 2004 at 16:28

Tuesday, Jan 13, 2004 at 16:28
g'day Mick, just had my nissan 3ltr in for the same annoying problem, nissan kept telling me prior to today that they could'nt fault it, guess what they replaced today, if it had'nt been for this forum i would not have had the understanding of some of these problems to be able to have a polite shot at the nissan dealership, regards, Adrian.
AnswerID: 42825

Reply By: Member -Bob & Lex (Sydney) - Tuesday, Jan 13, 2004 at 17:39

Tuesday, Jan 13, 2004 at 17:39
Had the same prob with ours, Dealer said nothing wrong, after 3rd time Nissan told them to replace air flow meter & not a prob since.Regards Bob
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AnswerID: 42834

Follow Up By: Bonz (Vic) - Wednesday, Jan 14, 2004 at 22:10

Wednesday, Jan 14, 2004 at 22:10
Nice colour car BobLaterally Literal
Seriously Cerebral
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FollowupID: 305297

Follow Up By: Member -Bob & Lex (Sydney) - Thursday, Jan 15, 2004 at 17:07

Thursday, Jan 15, 2004 at 17:07
Thanks bonz, but a bugger to keep ARegards Bob
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FollowupID: 305440

Reply By: jeff-wa - Tuesday, Jan 13, 2004 at 17:41

Tuesday, Jan 13, 2004 at 17:41
Same prob with my bosses car, 3 times to fix, changed EGR valuve to solve it.
AnswerID: 42835

Reply By: Truckster (Vic) - Wednesday, Jan 14, 2004 at 01:12

Wednesday, Jan 14, 2004 at 01:12
took a stab in the dark and changed the AIR FLOW SENSOR, and guess what, it spun the wheels again

Probably the most common fault!
Not bad at $1300ish each....
AnswerID: 42884

Follow Up By: Michael - Wednesday, Jan 14, 2004 at 16:23

Wednesday, Jan 14, 2004 at 16:23
I'm Glad i got the 4,2 tdi.... $1300 is a couple of weeks away for me. Its too hard to earn to throw it away like that. Give me the underpowered old slug any day..
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FollowupID: 305251

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