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1996 Geo Tracker Check Engine Light
#7
Thanks for the reply. 
So for the VSV (evap can purge valve, diagram 7 on the image you posted) - with the car off and connector unplugged from 7, the FSM says to diagnose it you blow on hose D (hoses F and D are connected to the purge valve, but disconnected from throttle body / cannister). The FSM says that with 7 disconnected and the car off, I should not be able to blow air through hose D, since the purge valve is closed. It says it opens when you apply voltage to it. 
When I tested this, I was able to blow air through it with it disconnected - which means the purge valve is bad, yes? 
 However you mentioned that the valve is supposed to "defaulted to open with key off". Is the FSM wrong? Or by "open" do you mean I shouldnt be able to blow air through it? 

Additionally, I think the diagram you posted is for the enhanced EVAP. I don't think I have enhanced EVAP, just the regular EVAP. Would this make a difference?

Below is an image of how I tried diagnosing #7 you listed, the evap purge valve vsv

[Image: aHFpInE]


https://imgur.com/a/aHFpInE
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Messages In This Thread
1996 Geo Tracker Check Engine Light - by sina27 - 06-18-2019, 06:28 AM
RE: 1996 Geo Tracker Check Engine Light - by sina27 - 06-20-2019, 08:20 AM

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