Originally Posted by
J4MES-T190
The bulb for EML is fine as it shows when the ignition is turned on, then goes off.
I'm taking my issues as 2 separate ones tbh. An idle problem and boost problem. The idle seems much better when the vacuum line for the dump valve is removed but not plugged. Plug it in and idle drops to 700ish rpm and car struggles. I have a replacement clean ICV to fit and will clean tps too and see what happens.
As far as the boost issue goes- I believe it is hitting the fuel cut and am wondering if the vac line between the compressor and actuator may be split somewhere, or maybe a problem with the actuator itself. My car runs a Lektron valve from escos, which itself is not working (no click when ignition comes on-need to test wiring and find replacement to test) and damaged. Input hose from compressor actuator is plugged for now til sorted.
Any advice or tips on anything like how-to for cleaning tps, removing ICV, checking actuator, Lektron, hosing etc from anyone?
Cheers
As its a Ford approved supply, it could be that the EML is disabled for all the engine management functions handled by the Pectel T2 supplied by Mountune. Most individuals fitting a separate ECU usually remove the bulb. The ignition on is only a bulb check driven by the cluster microprocessor, not a PCM check.
I was also treating the other issues as separate, as I said. You hadn't given any information on the boost problem anyway.
Stabilising the idle by giving an air leak (disconnecting an impulse line), is, as I suggested, more an indication of a PCV issue. Increased blowby on a turbo engine does reduce the life of the PCV valve. You've not mentioned checking it or its piping for condition.
You can't 'clean' the TPS. In any case, the PCM only has to have a reading below 20% if its controlling the ICV (rather than the ECU).
Your describing what you think are possible caused of your boost problem, but not actually what the symptoms are. Why do you think its hitting 'the fuel cut' ? What do you think the fuel cut is on the T2 ?
I check functionality of an actuator by simply pressurising it to a bar or so and seeing that it moves.
The boost valve is simply checked by making sure flow is correctly directed through the 3 ports with and without 12v.