Another S/C'd member worried about his AFR - Toyota Yaris Forums

LtNoogie · 03-26-2009, 01:51 PM

Quote:

Originally Posted by largeorangefont

Is the black box wired to the boost control knob? If so then the boost selection could retart the timing.

If not, then he could be right. I have a knockbox that we could listen to the engine with and see if it is indeed knocking.

Where in the OC are you? If I don't chicken out due to this AFR, I might just run into you at Willow Springs on April 10. You can see what the car is doing on and off boost.

largeorangefont · 03-26-2009, 01:57 PM

Quote:

Originally Posted by LtNoogie

Where in the OC are you? If I don't chicken out due to this AFR, I might just run into you at Willow Springs on April 10. You can see what the car is doing on and off boost.

Irvine area.

I still need to confirm I can go and get signed up for the 10th.

largeorangefont · 03-26-2009, 02:00 PM

What are the pinouts for the black box and does it connect to the boost switch? my guess is yes.

The next step is who is brave enough to disconnect a couple wires and find out exactly what the black box does :)

largeorangefont · 03-26-2009, 02:36 PM

OK I found the pinouts for the black box. It just connect to fuel related components. We will have to do some data logging to see why the car is pulling timing under boost.

Long,

If you can, warm up your car and do a couple pulls in 2nd or 3rd.

Then pull the negative battery connector, or pull the fuse to the ECU. Pump the brakes a few times and reconnect the fuse or battery.

Go out and do another couple pulls and see if the timing you see increases, or increases and then decreases. Let us know the differences.

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03-26-2009, 02:00 PM	#3
largeorangefont Break'em off some. View User's Garage Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007 Location: So Cal, OC Posts: 854	What are the pinouts for the black box and does it connect to the boost switch? my guess is yes. The next step is who is brave enough to disconnect a couple wires and find out exactly what the black box does :)

03-26-2009, 02:36 PM	#4
largeorangefont Break'em off some. View User's Garage Drives: 07 Yaris LB, 04 Cobra Join Date: Jan 2007 Location: So Cal, OC Posts: 854	OK I found the pinouts for the black box. It just connect to fuel related components. We will have to do some data logging to see why the car is pulling timing under boost. Long, If you can, warm up your car and do a couple pulls in 2nd or 3rd. Then pull the negative battery connector, or pull the fuse to the ECU. Pump the brakes a few times and reconnect the fuse or battery. Go out and do another couple pulls and see if the timing you see increases, or increases and then decreases. Let us know the differences.