tb42e idle rough as guts

[JME_GU]

If you have changed swapped injectors and the problem is still occurring then it is likely wiring. Check the plug itself, the pins sometimes become unseated, then trace the wiring back to the computer using a multimeter until you find the break in the wiring.

[Bernas]

Yes injector hve been swapped. Wiring also have been tested from injector to ECU and all ok. When injector bypassed direct with (-) from battery, its spraying. Looks like no signal coming out from ECU for 1 of the injector. Its a frustations, because looks like the input signal for ECU to trigger the output to injectoris come from Cranks Angle Sensor inside distributors, and I do not know how to test it whether its works or no.

[brooks]

Hi & welcome to you & bernas, i had an issue once with a burnt exhaust valve could also be just sticky. if you hold a piece of paper on the exhaust tail it should blow away constantly, if it sucks back onto the pipe possibly a burnt/sticky valve.

[Bernas]

thanks will check it