http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=151
Next you'll be asking where JB #1 set bolt is.
Not that I think a bad ground has anything to do with your troubles but you could always supply one and see what happens.
Ugh. Minivans and eco-nazi cars. The scourge of the highway. I'd be seriously embarrassed to be seen in that thing Monsewer. Then again since I own a DMC 12 I have no right saying that.
Otherwise it's the G37 Coupe or the bike (Vulcan) when it strikes me...
A meter with min/max on each trigger while jiggling/moving stuff usually works. The lazier way is a low current fuse on each trigger or one trigger at a time if you're willing to wait. Can't get more cheaper and effective than that.
Nope, can't be used on 0-5 volts. NB is 0-1 vdc. That said all one has to do is measure OX or VF (in diag mode when off idle) to see what the mixture is doing.
It's the 22. Fix it. Means the coolant temp signal is either open (above 4.8 volts) or shorted (below 100 mv). Could be sensor or wiring. Simple enough to use a meter and pinpoint which. You're simple enough right?
Colors? Whatever ones are connected to pins 1 and 2. Looks like B-R and V:
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=114
See the "A" next to the connector? Go to the pages following the schematics...
Ironic since Toyota designed that setup to be fail safe. You're right, you don't understand how it works. Both the FPR and three way solenoid valves. Lucky you didn't toast your engine...
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