I had exactly the same problem on the way home from my last remap but mine happened whilst doing motorway speed .
It could be a dodgy/dirty connection on the ecu chip or possibly the immboliser.
I had the chip cleaned up and ecu de-imobilised at the same time so dont know which one was causing the problem but its gone now.

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Team High Boost Supercharged Gti-6™

im thinking its probably the ECU as well. Did you have same problem with the oil level and stop light bininpz?

I believe cam sensor and crank sensor could be faulty as well but i doubt it really.

Are there any checks i can do to find out?

are you 100 percent certain about that???

it could be the alternator as well i believe just need to work through it and find out why ive no oil level reading or stop light when turning the key

ive built up the oil pressure but spark plugs were in i think??


i cut the fuel off ages ago and primed the oil circuit if thats what you mean so it doesnt start on a oil less run.


Rich do you still get the stop light and oil level with a locked ECU.

Could just do with knowing what you do and dont get with a locked out ECU. thanks for the help anyway.

ill check all my earths later

ok thanks rich so just to confirm

with locked ECU i should still get stop light and oil level reading?

Would an alternator problem cause me these problems, but like you say it does sound like a wiring issue though tbh

the spark plug issue is this so air can evacuate the chambers then? the bearings will be under load even without fire?

would have thought the valves would open to release pressure but then what do i know.

Yes, you should get everything, even if the ECU is locked.

As for load on the bearings - even though there's no combustion, there's still pressure in the cylinders, and load on the bearings.

When you do a compression test, there's no combustion, but still pressure, isn't there?

It should be OK though.

As for the dash etc, does the oil pressure light come on or not? It should do, then go out as you turn it over.

________________________________________

Contact Details:

rich@lynxpowerengineering.co.uk
07732 822546

i think i may have solved the problem.

Ive a spare block and so looked at the pressure switch on the block and noticed its a single pin switch, then looked at my engine and loom and whats plugged in has 2 wires an earth and something else.

On my car there is a spare connector around this area floating around doing nothing but the lug looks totally wrong type but is a single wire type sensor.

So looked at another loom i have lieing around and this has a different spare plug that would otherwise be floating around if put on the car and is a single wire type.

This fits the pressure switch on my spare block too as well as the 2 wire one like whats plugged plugged in on my engine at the moment.

Ive also noticed my cars loom has a different power steering hose connector on it to most but lucky i have the fluid pipes to match.

So do i need to cut the single wire connector off my spare loom and replace the connector on the wire thats floating about and plug that into the pressure switch instead??

Ive a strong feeling this could be whats wrong.