Originally Posted by cgsheen
The injectors will (should) have battery voltage to one side (the injector is a coil so it doesn't actually matter which side) at ignition on. You could verify that by pulling the connector and checking both sides of it with your multimeter. The ECU applies the ground connection to the other side when it's active. The pulse it supplies is in the millisecond range - probably impossible to see on a multimeter. You might try a "noid" light to make sure the injector circuit is active...
The injector resistance probably matters very little at this point but you may want to check that there is indeed continuity through the injectors.
Could be that the injectors are stuck closed.
Everything on this engine starts with the CAS signal. You can verify the ECU "sees" that signal by watching the LED inside the ECU as you crank the engine. The LED should light at ignition on and go off soon after you start cranking. If it doesn't turn off, you have a CAS or CAS wiring problem.
Thanks for the replies, it might be that the injectors are clogged.
Could someone tell me which ones are the best to use as a replacement? And what source to buy from?
I have ECU A18-601 042, is it possible to take injectors for power improvement wo tuning the ECU?
Thanks for the advice.