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Help regarding VATS - Feb. 26 2008 19:37:22
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Andy-D
Posts: 463
Joined: Jul. 15 2005
From: United Kingdom
Status: online
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Hi guys,
I have a situation which i would appreciate some help on... (this is a copy of what i posted on Thirdgen.org, any help is much appreciated!!)
I went to go start my Camaro after the winter break and it was being reluctant to start. Not unusall but never the less it wouldn't start. We got a can of EZ-Start to attempt to get it firing. My dad was spraying it into the air filter element area and i was turning the ignition key. Still nothing. He then checked the distributor and ht leads. We noticed that the distributor was loose in terms of its not tight, it won't rotate but it just doesn't feel solid. After checking all the leads he then went to start it and nothing.
Before it was turning over and then it wouldn't. The syptoms are quite unusally. The battery is fine and fully charged. When you insert the the usual tone starts and all the dash lights EXCEPT the security light which doesn't come on at all. When you go to fully turn the key as though starting the engine nothing happens. There doesn't appear to be any current drain as none of the lights dim. The only thing which is noticable is the water temp guage goes all the way across.
I have started fault finding the circuit. I checked the starter enable relay and it is recieving the full 12v when the ignition key is turn all the way to start. I have also taken the cap off and found that the relay isn't activating. I've found this is the cause of the car isn't starting because i have manually closed the relay and found it to start turning over.
Now this leads me to think that the problem is the relay is not seeing a ground via the Passkey Decoder module.
Could someone shed some light regarding whether the Vats system can fail? Is there any legitimet way of bypassing the system? Could the Vats system be causing the car to not start even when it was turning over on its own steam (eg, its not allowing the fuel pump to work)?
Sorry for the long list of question, i'm not an automotive genius when it comes to circuit boards and the like.
Thanks for any help in advance. I really am slightly worried about having to dig out a module somewhere deep in the 90's dash.
Andy
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RE: Help regarding VATS - Feb. 27 2008 19:18:26
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Goonv8
Posts: 601
Joined: Feb. 16 2008
Status: offline
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This may be of no relevance at all but I had exactly the same fault with my Porsche 924 turbo. Car would turn over, full lights on the dash, no voltage over the coil. I went the long route and replaced the ignition module, plugs, leads, coil, car rotor arm all to no avail. Know what the problem was? The plastic on the ECU multiplug had become a little brittle and the locating catch had snapped, causing the plug to slide ever so slightly off the contacts, not enough to see, but enough to break the circuit. Funny thing was, I forgot to reconnect the coil lead and there was an almighty arc as the voltage shot out of the coil and discharged on the bonnet. Hope that this might help.
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