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I don't know if there is a location for a block heater on your engine, but if you are doing a lot of short journeys, then this will make a difference.

Poping back in the induction, is a sign of incorrect timing (either ignition or cam timing) or possible running weak. Did you do anything with the timing chain during the overhaul?. Also you said fuel smelt stale, never heard that before, could there be water in the fuel?

Assuming its not a collapsed exhaust silencer creating high backpressure, then I would agree with most of the others about it running weak. You need to read any fault codes in the Bosch EMS ecu, thats how a dealer would diagnose. To confirm its not engine speed related, with car stationary...

If the car is still in an armed state and the becm has not seen an unlock signal from the remote handset or you have not used the EKA code, then when you try and crank the engine you will get the message "Engine Immobilised" / "Press Remote" / "Or Enter Keycode" message . If the alarm has been...

. I'm not saying your becm is knackered, the only way to confirm what the problem is, is to diagnose, just like you did with the relay test, ie you confirmed the problem is not downstream of the fuse box. The engine could still be immobilised and by checking the check engine light status with...

The glowing red led is normal and its the same on every P38A auto. It's a small back feed from the becm and is a very useful diagnostic tool as it only glows like this while the becm is in its awake mode. If u ever have a flat battery issue, u can check this lamp to see if the becm is going to...

The ignition switch, does not have 12volts going to it (it uses gnd switching), meaning that when the ignition is switched on, the becm receives a gnd signal from the ignition sw. Likewise when you go to crank, the ign sw sends a gnd to the becm. When the becm receives this gnd, it checks if you...

If it cranks and the check engine light comes on, its not immobilised. If you have sparks, it sounds like the crank sensor is ok. The crank sensor is THE one sensor that has to be working properly for the engine to start, if any other sensor fails, the ecu assumes a default value for them or...

Pappymason, glad you got the vehicle going. Datatek, I half agree with you about the spikes, but automotive ecus are designed to withstand spikes, such as when the battery is disconnected when the alternator is putting out full load or the spike introduced when a battery booster (that is...

Not sure if your engine will crank but not fire up or not crank at all. First thing is make battery is ok in terms of charge at least 12.7 V (if you have a volt meter). Assuming it does not crank, then if you have a voltmeter, measure the voltage across the battery terminals whilst trying to...

Should be a picture attached of an 84MY LR 90 with a 3.9 and a range rover classic aircleaner and airflow meter. I fitted 2 brackets to the bulkhead to support the aircleaner and AFM. The hose is a std LR part, but I can't remember where I got that from. It does not have LPG

idle control valve is mounted on the plenum. Tacho signal comes from the engine management ecu and that ecu uses the crank signal.

when you say it won't start, does it crank, crank fire and die or not crank?.

I reckon with 1.0mm off the heads, that will take the cr from 9.35 to 10.15. I run 10.4 on my V8 and run on 97ULG (instead of std 95ULG) and when hot get pinking on accel above at about 3000rpm. I can't adjust the timing on mine (its a thor), but you can adjust the timing. If you can get...

Switch on the ignition and see if the amber check engine warning lamp comes on. If yes that means the becm and gems are talking to each other and no resync is required. If no the gems is not happy with the security code from the becm.

No u are not going bonkers yet. Agree it does not sound electrical. Does the sill button go further down when door is open compared with when closed?. With door open and the latch moved over to the door closed position (use pencil or screwdriver to move pawl)do you get the same problem as door...

It sounds like you are not getting enough movement with the linkage when you press the sill button down, where as you are getting enough movement when you turn the key. Can you assist the cdl linkage by pulling down the arm that the sill button linkage attaches to?. But you are correct that...

The alarm fault message is only associated with the ultra sonics system. So it's not indicating a lock, or a remote fob problem. It is the becm saying, that it is not happy with the signal coming back from the sensor. It could be a becm, but more likely to be the ultrasonics sensor or the wiring...

With a problem like this and before you dismantle anything, there are a few checks that you can do from the comfort of the drivers seat. Switch on the ignition and watch the amber check engine lamp. If it comes on then this is the gems ecu talking to becm saying saying it is happy with the...

Could also be the manifold to downpipe gasket leaking. Before you buy any parts confirm where the leak is. This won't cause a head gasket problem.