Jeeze! Where to start? Steve you did not have an answer for this guy? what year of truck?what is the injection timing circuit malufanction and what do i do to fix it![]()
Sounds like your ecu is having a problem controling the proper injector firing sequince. Do you have a scanner to check the ecu for codes?If not,i would recomend getting one.They can come in handy.what is the injection timing circuit malufanction and what do i do to fix it![]()