Hello. Need your advice on Injection Timing. My pickup (4ja1 with 73K in the odo) is running a bit rough when idling. Rough, meaning noisy as compared to other fuego pickups. This is specially true when I am using AC while the pickup is idling. I just had my Injection Nozzles cleaned. I also recently replaced the air filter, fuel filter, oil filter, all fan belts, and oil. But still the idle is still rough.

Nabasa ko sa isang discussion na "if you want your 4ja1 engine to be running smooth...as in smooth idling..you should have ur injection timing be corrected." Do you think an injection timing adjustment will help? Is there a recommended setting or frequency for the adjustment of 4ja1 injection?

Thanks.