Part blocking the MAF resulted in figures up to: Bank 1,1: 0.945 Bank 1,2: 0.900 Bank 2,1: 0.915 Bank 2,2: 0.915 Blocking it completely resulted in stalling :D

Right idle 6.8g/s, 3000 revs 27.6g/s. Switched MAFs gave the same results but initially the 02 sensors appeared to be switching for a 20-30secs from virtually zero to .0859 then they went back to the same outputs as before.

Cheers will do so tonight when I get in. Bill

The plenum ect is from the old engine which had SAI. However having been out with a torch for a poke around (yes daft I know, but it's quite nice out), how about the throttle body assembly not tightened onto the the manifold being the problem, top two bolts were hand loose not checked the bottom...

Cheers. I take it back about the blanking plug for the SAI, I assume you are talking about the one in the plenum manifold area Microcat is not clear as to where it goes and if so I am not sure now!

Ignore the LPG, I am not running LPG at the moment and anyway the whole system has been overhauled with new new parts, by a specialist. The 4.6 fitted is a non SAI engine so no need for blanking plugs and the SAI fault is a red herring LR have told me themselves that it has no effect on...

Just done these, although they show min/max and averages they are fairly typical! This is using ScanXL. Cheers Bill

I hope so mate cos that's what I have got!

Thanks. Yes as eightinavee says the rear O2 sensors are just a check. I will try and get out and get some live data. Regards Bill

Insurers will tell you different, any alteration from the factory specification is classed as a material fact, even dealer fitted manufacturers options, so should be notified to the insurance company unless it's on any list of exemptions they may have. And it's irrelevant whether it improves...

Right replaced MAF yet again and also replaced Engine Coolant Sensor. Made no difference. I have now got a diagnostic setup on the laptop. Only faults showing are P0304 Cylinder 4 Misfire Detected (happened this morning) and P0413 Secondary Air Injection System Switching Valve A Circuit Open...

Thanks for all your responses much appreciated. Bill

LPG system is Romano based and worked fairly well with the old engine despite having an undersized vaporiser, the system has been properly overhauled since the new engine and things the the vaporiser, pipes and solenoid uprated to cope with minimum 300bhp, it's even properly registered. I'll...

Yes it did, but it seems to have been coincidence, as we have tried just petrol and it makes no difference. I have thought about getting a lead and software for the laptop so I can do some live data readings, are these 30 quid offerings like this one any good? CAR DIAGNOSTIC CODE READER ELM...

I'll see if I can find out Stu. RM, the garage did all the build work as per the engine suppliers instructions, the vehicle was then run in at max 2,000 revs for 1100 miles on petrol only again as per the suppliers instructions, during this period it returned average mpg of around 20 and a...

Going mad - double post

It was a long engine from B&H. B & H Automotive Ltd. - Reconditioned Landrover & Range Rover V8 Engines

Lambdas have less than 500 miles on them genuine LR parts, new ECU was only fitted on Friday so we were on a clean sheet there. Coil pack was checked 1350 miles ago in an effort to correct this problem and found to be not original but OK. Cheers Bill

Hi Stu, Not really monitored the oil consumption, I put maybe a pint in yesterday after doing the 390 miles but didn't check it before and it's been with the garage so long I can't remember the last time I checked it. Not touched the cats. It's still on the 4.0 trim, Dynachip who coded the...

Since fitting the new ECU fuel consumption has gone from 22.43 to 16.24 to 14.48 over 387 miles. Changing the MAF made no difference to the problem, if you feather the throttle or floor it you can get past the problem, try to drive normally and it's as if there is not enough fuel being...