i need a system wiring diagram for your car so i could help you out.
does anyone have one for me?


dont change anything else on your car coz u might be spending on unnecessary stuff.
do these simple test for me

locate your obd2 dlc connector and using a multimeter, measure the voltage out of the following

pin 4---ground

pin 5---ground (sensor ground)

pin 16--- 12v

pay close attention to pin 5. if you see 12v on pin 5, your sensor ground is lost.

its also possible that your rpm pickup, camshaft sensor, is broken but these usually sets a code. with one of them brokken, the enjectors goes into grouped injection coz the pcm does not know which cylinder to fire.
just a thought but were getting there