Checked fuel injector and connections to coil with noid light.
Check the fuel injectors...
Not exact matches
You can also test continuity, duty cycles, and diodes, and
check on
fuel injectors with the millisecond pulse width measurement.
I know the anticipation of possibilities is as much fun as watching paint dry so if I were you I would take the time to at least
check each of your cylinders and each
Fuel Injector for full spark.
This covers several possibilities like leaky
fuel injectors,
fuel leaks in the
fuel lines, faulty
fuel pump
check valve or faulty
fuel pump accumulator.
The engine ECU powers the actuators on the vehicle, so you need to
check things like:
fuel pump runs when ignition key is turned to the run position, power to
injectors, power to ignition coils, brake lights working.
Recent activities which could have triggered the problem include
checking the EGR value (clean),
checking engine coolant sensor for cracks (none) and having the
fuel injectors pro-cleaned.
the
fuel (
check the
fuel system: the low pressure
fuel tank pump, the
fuel line, the
fuel filter, the high pressure
injector fuel pump)
There are also motorsport - spec
fuel injectors, tweaks to the ECU, an enhanced intercooler (to keep the new turbo in
check) and a 3in diameter stainless steel exhaust to allow gases to flow out with less hassle.
Possible causes are an incorrect
fuel mixture, incorrect timing, corroded spark plugs, a faulty oxygen sensor, sticking float, faulty
fuel injector or a malfunctioning
check valve.
The resistance on all the
injectors is good at 15.5 ohms iirc and
fuel pressure was fine at 35psi idle and 44psi with the
fuel pressure regulator disconnected when I
checked a few months ago.
With the car running and while applying the brake,
checks for vacuum leaks in the vacuum lines, hoses, air inlet tubes, and
fuel injector
You can easily
check for
fuel pressure on the
fuel rail to rule that out but if there is adequate
fuel pressure you have to further test the
fuel injectors to determine if...
At the
fuel rail you should
check for pressure and volume and then confirm that the
injectors actually work.
In addition to the normal oil change and tire rotation, the dealership
checked the electrical and cooling systems, tuned the engine and added
fuel -
injector cleaner and an air filter.