VTA and WTRT

Tibi91 · 07-31-2006, 10:37 PM

Ok so I finally got my car up and running this past weekend. I am using a AP PFC. I did that whole learn idle procedure and set the injector values. Anyway, after I shut the car off I went to start it and it wouldn't it just keeps on cranking and the only things lit up on the commander are VTA1 and WTRT. I checked the wires for both of them and the resistances both are within spec. But I decided to buy a new TPS and Water temp sensor, hoping it would fix it, but they are still lit and my car won't start. Anybody have any idea what it could be?

Weasy2k · 08-01-2006, 11:08 PM

Get someone to check the voltage during crank...there could very well be loosing power for some reason during crank. I am not farmiler with the AP PFC...got a link? (im to lazy/busy with the v6 here to look :P )

Tibi91 · 08-02-2006, 02:13 PM

They are constantly at 4.98V each, from the moment the car is turned to accessory and during cranking. When I cut the wires from them they drop to 0V. I spoke to some local guys that have used this system on other cars, and they informed me that the simplest way to fix it would be to put a resistor inline. Would that be a good fix? or should I just keep trying to find the actual problem (if there even is one)?

Weasy2k · 08-09-2006, 09:17 PM

That must be the 5v feed to the TPS man....maybe you got the wrong wire?

Tibi91 · 08-09-2006, 10:46 PM

I fixed it, wire E2 from the ecu had oxidized so i replaced it going to everything the original E2 went to.

Weasy2k · 08-10-2006, 01:12 PM

wonderful....do you have a link to the unit your using? I like reding up on them

07-31-2006, 10:37 PM	#1 (permalink)
Tibi91 No Skills Join Date: Jul 2006 Location: Calgary Alberta Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	VTA and WTRT Ok so I finally got my car up and running this past weekend. I am using a AP PFC. I did that whole learn idle procedure and set the injector values. Anyway, after I shut the car off I went to start it and it wouldn't it just keeps on cranking and the only things lit up on the commander are VTA1 and WTRT. I checked the wires for both of them and the resistances both are within spec. But I decided to buy a new TPS and Water temp sensor, hoping it would fix it, but they are still lit and my car won't start. Anybody have any idea what it could be?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-01-2006, 11:08 PM	#2 (permalink)
Weasy2k What is an MR2? Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,891 Thanks: 33 Thanked 82 Times in 68 Posts iTrader Rating: (9/100% )	Get someone to check the voltage during crank...there could very well be loosing power for some reason during crank. I am not farmiler with the AP PFC...got a link? (im to lazy/busy with the v6 here to look :P )

08-02-2006, 02:13 PM	#3 (permalink)
Tibi91 No Skills Join Date: Jul 2006 Location: Calgary Alberta Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	They are constantly at 4.98V each, from the moment the car is turned to accessory and during cranking. When I cut the wires from them they drop to 0V. I spoke to some local guys that have used this system on other cars, and they informed me that the simplest way to fix it would be to put a resistor inline. Would that be a good fix? or should I just keep trying to find the actual problem (if there even is one)?

08-09-2006, 09:17 PM	#4 (permalink)
Weasy2k What is an MR2? Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,891 Thanks: 33 Thanked 82 Times in 68 Posts iTrader Rating: (9/100% )	That must be the 5v feed to the TPS man....maybe you got the wrong wire?

08-09-2006, 10:46 PM	#5 (permalink)
Tibi91 No Skills Join Date: Jul 2006 Location: Calgary Alberta Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	I fixed it, wire E2 from the ecu had oxidized so i replaced it going to everything the original E2 went to.

08-10-2006, 01:12 PM	#6 (permalink)
Weasy2k What is an MR2? Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,891 Thanks: 33 Thanked 82 Times in 68 Posts iTrader Rating: (9/100% )	wonderful....do you have a link to the unit your using? I like reding up on them