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karlaw · 09-18-2017

I discovered in my red ZR the main fuel pump was failing. Installed new fuel pumps, and fuel pressure goes to 50 lbs , but using key in ON position I Hotwire from battery to that purple solenoid wire behind the ECM box.
After sitting, and with full battery, car cranks over and fires and tries to run, but won't start. Upon second try jumping to purple wire, turns over good But no fire.
Leave car set 10 min, then same thing....it fires and almost starts, then nothing on second attempt until it sits 5-10 min.
I have been using VATS INTERAGATOR, as well as bought one of those $30 vats bypass gadgets where you toggle switch the 1-15 bypass.
Where is the Throttle Position Sensor located?
Also, does the engine need vacuum pump working to start ?

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09-18-2017	#8
karlaw Join Date: Jun 2008 Location: Alberta Posts: 87	Re: No Start , No Power I discovered in my red ZR the main fuel pump was failing. Installed new fuel pumps, and fuel pressure goes to 50 lbs , but using key in ON position I Hotwire from battery to that purple solenoid wire behind the ECM box. After sitting, and with full battery, car cranks over and fires and tries to run, but won't start. Upon second try jumping to purple wire, turns over good But no fire. Leave car set 10 min, then same thing....it fires and almost starts, then nothing on second attempt until it sits 5-10 min. I have been using VATS INTERAGATOR, as well as bought one of those $30 vats bypass gadgets where you toggle switch the 1-15 bypass. Where is the Throttle Position Sensor located? Also, does the engine need vacuum pump working to start ? Sent from my iPhone using ZR-1 Net Registry __________________ LT5