Now you might think that spraying lighter gas approximately a warm engine isnt wise, however the flash /ignition narrowing of gas is very nearly 400C in view of that you need a naked ember or spark to set it off and Ive used this method for many years without incident. con your showing off through each realizable joint one at a times and you should find it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to offer a spraying wand and allow a take up blast of gas into each area, especially those hard to achieve past large implements.
Its in addition to worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a in poor health pump will every outcome in insufficient fuel being delivered to the engine. Might also be worth cleaning out the idle readiness control motor / valve as these acquire clogged stirring later carbon and some brake cleaner washed through helps clear things off.
Hello the TPS does have an effect upon switching the car into idle mode thus I'd suggest to create distinct the throttle dish is 100% closed and not slightly high and dry past carbon. and after that adapt the TPS as a result that the IDL attach is continuous to the E2 attach bearing in mind the throttle is closed, and gain access to circuit like the throttle is just cracked. Don't trouble nearly any voltages, the IDL right to use is the truly important one.