Try to start up and everything shuts off, electrical

[supraguy@aol]

Check the codes again, see which codes came back, and test those related parts.
And yes, you can test the harness connections; just disconnect the ecu plugs, and run a multimeter's test lead from the sensor plug to the ecu end,
and read the resistances. Obviously, you'll need to temporarily connect an extension wire to one of your two multimeter leads, so that you can have
the multimeter with you at the ecu.

 

[supraguy@aol]

PS- If your O2 sensor is bad, it won't affect cold idle.
Did you ever check your cam(not ignition) timing? That would affect engine idle both cold and warm.
If you do get an afm or tps code, just test them as per the tsrm. It's an easy way to rule them out, or verify them as a culprit.

 

[Doat]

I set the motor to TDC and TPS to TDC and checked it before tightening I should get a timing light to make sure the timing is right. I will give checking the connections a shot but do I have to check the connections from the ECU behind the dash or the wiring harness?

 

[supraguy@aol]

Ideally, you'd check the continuity at the ecu, behind the glove box, to insure that the signal makes it all the way.

 

[supraguy@aol]

Just to clarify- because I wasn't sure what you were saying @tps at tdc- You checked resistances of the tps and afm as per the tsrm?

 

[jetjock]

I checked everything, reconnected everything, cleaned up the connections with a toothbrush and 90% isopropyl and the car still idles rough like it will idle ranging between 2-300 rpms at times and sometimes it will stall. I am thinking about replacing the O2 sensor and AFM sensor and seeing if that solves the problem since removing the EFI fuse for 20 seconds didn't do anything. Is there a way I can check the connections to see if the connectors on the harness are bad or the connectors on the sensors themselves are bad? I am out of ideas on how to resolve this issue or find out the cause. The wiring harness doesn't look damaged and the connector prongs don't look damaged especially after I cleaned them.

This thread is becoming downright painful.

 

[Doat]

Just to clarify- because I wasn't sure what you were saying @tps at tdc- You checked resistances of the tps and afm as per the tsrm?

I meant I set the motor at TDC and lined up the CPS to be at TDC, lining up the hole in the gear with the notch. I accidentally typed TPS instead of CPS, my mistake.

This thread is becoming downright painful.

Elaborate so I can make it easier.

 

[Doat]

Alright so I checked the AFM Ohms I only had time for that and forgive my ignorance on using multimeters but I got 3.9 ohms at 200k on my multimeter, it is about 48 degrees outside and when I checked the harness plug of the AFM it read 5.0. The car is also only showing engine code 24 now.

 

[chrisisg77]

Ps when you test AFM per TSRM youre actually just testing the temp sensor. THA. Check the karman side

 

[Doat]

so is the temp sensor fine? and what is the karman side is that the ecu end?

 

[supraguy@aol]

...
..
....well?

 

[Doat]

Well it seems my AFM sensor is bad I bought one from a member on here and waiting for it to arrive in a day or two now. I also ordered an LIPP air filter adapter, aluminum instead of the crappy stock plastic that broke on me.

 

[supraguy@aol]

cool.
I like progress. Maybe because i have none of my own.

 

[Doat]

I need to change my clutch very soon it's starting the slip, so I am looking at the ACT TS2-HDG6 6 puck clutch kit on driftmotion, any recommendations for a street car? I plan to get it up to 400-500hp in the future with a 1jz.

 

[Dan_Gyoba]

I have that clutch.

I like it. I don't notice extra pedal effort anymore, and it's not that bad anyway (My 14 year old daughter can manage it.) I can handle stop and go traffic with it, and have let it in at idle without chatter. Until you develop a feel for it, it's somewhat abrupt, but I didn't find it harsh.

 

[Doat]

I've read once you break it in it's not as harsh and apparently you break it in by doing launches?

 

[Dan_Gyoba]

I followed a more normal break-in procedure, ending in a couple of hard launches, but yeah, it's better after that.

 

[Numba1Stuna]

cool.
I like progress. Maybe because i have none of my own.

Lol, me too. My build is progressing one step a month lol.

Sent from my LG-P999 using Tapatalk 2

 

[Doat]

I replaced the AFM and now she idles perfectly, no more error codes, and boosts nicely. Here is a pic of the AFMs new one is on the right with the LIPP air filter adapter.

 

[Numba1Stuna]

Purdy... Time for some cookies in the snow! Well, if you have any down there in Texas. We got about 4" today and she's still coming down...

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