Have Toyota Questions? Ask a Mechanic for Answers ASAP
Hi, I'm Greg (Indy-Tech).Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.Rgds Greg.
Do you have a scan tool with live data .
Clear codes and do a test drive with out using the A/C .
Still same problem?
Do you have a scan tool with live data reading .
Okay good go into RPM /Engine speed in live data ,get engine to eoperating temp.
The with the underhood DLC jump the pins TE1 and E1.
Note idle speed before jumping the two pins then not after .
Let me know if you have a change in rpm.
Check short fuel trim at idle and then again at 2500rpm .get me the readings .
Hello and welcome to just answer, my name is ***** ***** master tech here to help. I cannot see or hear your vehicle so I rely on your patience and input to my questions so I can help you better. I read your notes and have a question before we proceed. have you checked the comparability with the original ECU to that newer engine you installed as it may have different values for that circuit. You can call or go to a dealer and ask the parts department to cross reference those two possible ECU's to see if they upgrade.
The other thing you can try even though you said you replaced the IAC the passages may be clogging so you can try cleaning them. I will send a video how to do this.
Then I would do as I suggested and check to see if that ECU is compatible for that engine, parts can cross reference it and tell you that.
one of the same
ok this can be either a faulty oxy sensor or gas flow. What I would have you do first is to apply vacuum to the egr valve directly and see if it stalls. let me know
then the next thing to do is monitor the oxygen sensors , If you can use a scanner showing live data and graphs you can follow the performance of all the oxygen sensors.