Need help wiring Lexus AFM pigtail to 7MGTE harness..
- Thread starter bxiong17
- Start date
Okay, what you need to do is find someone local who knows how to do this stuff and have him/her show you. It's extremely basic knowledge to test wires with a multimeter. Read the TEWD from the start, where it tells you what the diagrams mean. It will tell you how to figure out how to count which number pin is where in any given connector. the diagrams have the wires in colour, so you don't even have to try and figure out if B is blue, black, brown, beige or bare copper. It will tell you how to figure out what the different symbols mean, which are connectors, which are places where the wires go through a panel like the firewall or fender, and how to read the numbers on the symbols to determine WHERE it does so.
Take the time, read the introduction, and the "How To Use this Manual" section. It will also show you how to use your multimeter.
Take the time, read the introduction, and the "How To Use this Manual" section. It will also show you how to use your multimeter.
^ Wise words.
OP: Here's the wiring. See the AFM and the pin numbers? 1-4?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=49
See the connector designation (c) next to it in the little circle? A few pages further shows that connector:
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=52
Wire it according to that.
OP: Here's the wiring. See the AFM and the pin numbers? 1-4?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=49
See the connector designation (c) next to it in the little circle? A few pages further shows that connector:
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=52
Wire it according to that.
you guys are awesome.. couldn't do it without all the helpful info.. the wires are now all hooked up to where they should go.. she starts up and rev up beautifully.. but the codes are still there? how do i reset them? or do they automatically go away when problems is fixed?
Codes only go away when you reset the ECU. It stores them.
If you're still getting a code 22, you should check the sensor connection. Most of these codes are "open or short" codes, meaning either the wire is disconnected, or shorted to ground.
If you're still getting a code 22, you should check the sensor connection. Most of these codes are "open or short" codes, meaning either the wire is disconnected, or shorted to ground.
redid the wiring for the coolant temp sensor so code 22 is gone.. she starts up but idle up and down as if the engine going to stall but doesn't but when you give it a little gas it dies.. then throw code 31 again.. i don't get it.. it can't be the wiring because when i rewired it, code 31 was gone.. i tried 2 different afm and still throwing code 31.. can it be the tps or idle air control? i am starting to think this car doesn't like me.. one thing after another..
that throttle body screw, when you unscrew it, it allow more air into the throttle body.. is it suppose to be screw all the way in? i read on some other forum you aren't suppose to touch it because the ecu controls the amount of air entering the intake manifold..
You read right, the idle is ecu controlled and that screw should be fully seated. And the code 31 can only be afm related.