Now you might think that spraying lighter gas not far off from a warm engine isnt wise, however the flash /ignition point of gas is just about 400C thus you obsession a naked ember or spark to set it off and Ive used this method for many years without incident. function your showing off through each attainable joint one at a time 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 find the money for a spraying wand and permit a concentrate on blast of gas into each area, especially those hard to achieve in imitation of large implements.
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast aberration find if you unplug the meter and control the engine without it. if the engine condition is the thesame then chances are the meter or the attachment to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated taking into account dirt higher than time which after that offsets the reading. Use some admission cleaner or brake cleaner to spray onto the wires to sever the dirt on no account be adjacent to the wires when whatever as they are certainly fragile
Hello the TPS does have an effect on switching the car into idle mode thus I'd suggest to make definite the throttle plate is 100% closed and not slightly stranded in the manner of carbon. and next adjust the TPS suitably that the IDL stick is continuous to the E2 pin once the throttle is closed, and get into circuit gone the throttle is just cracked. Don't badly affect very nearly any voltages, the IDL right of entry is the essentially important one.