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Thanks for the advice along the way everyone. The GQ TB42e lives again -the fuel pressure regulator was the cause of the fuel prob.

So to recap, terrible starting and running on gas and even...

By process of elimination and getting a fresh set of eyes on things, it looks like the fuel pressure regulator has crapped itself and the injector "baskets" were clagged with E10 petrol "varnish"....

Well - I replaced the ECU and hey presto the MAF voltage on the ECUtalk is rising and falling depending on the throttle movement - where as before it was sitting up on 5.115 volts and not moving. Now...

Hi Irish,

I replaced the crank angle sensor, checked the timing using a light at 10 degrees BTDC, checked the TPS with a multimeter - it is within specifications and advances / reverses...

Yes, it's not the MAF - one expensive and brand new MAF = no change to what's going on. To start the motor on gas involves putting the accelerator pedal about a third to half way to the floor while...

Threedogs, how does dual fuelling happen?

Thanks everyone - I have been busy on the issue. Took Cuppa's advice and went over the engine, checking any sus looking hoses on the vacuum side of things. Some of those things were hard and had no...

Yeah, I will get that ECU scanned and stop splashing money around at Bursons. Thanks billyj.

Hi all,

My 96 GQ LWB with the TB42e injected motor dual fuel has gone from running well to being almost undriveable in the space of a week - and I am plagued by the "check engine" light.

The...

G'day to all Patrol owners, I have a 96 GQ LWB with the TB42e engine, set up for dual fuel. I have read the forum entries many times before and since joining and thought I should do the right thing...

I thought I should pass on my experiences solving a similar prob on my dual fuel TB4.2E GQ. The story began when I ran on gas for ages, keeping almost no fuel in the LRA petrol tank. Then came the...