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Date:         Fri, 23 Jul 2004 02:42:48 -0500
Reply-To:     wrightvolvo@MAC.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Rob Wright <wrightvolvo@MAC.COM>
Subject:      Re: Engine is being flooded with fuel. Help??
Comments: To: mark drillock <drillock@EARTHLINK.NET>
In-Reply-To:  <41015090.8060201@earthlink.net>
Content-Type: text/plain; charset=US-ASCII; format=flowed

So it sounds like I may have a bad ground since the injectors are not pulsing. When I turn the key on they spray fuel constantly and the fuel pump never shuts off. i bought this van in this condition so i'm not sure what the problem might be. Is there suppose to be a strap grounding the engine to the chassis ? On Friday, July 23, 2004, at 12:53 PM, mark drillock wrote:

> There is SUPPOSED to be +12 to the injectors when the key is turned on. > The relays are not the problem, it sounds like they are working. > > The ECU controls the fuel pump relay. The fuel pump relay also provides > +12 to all injectors. The ECU runs the pump for a few seconds every > time > the key is turned on and all the time when it thinks that engine is > spinning. The injectors also get +12 at the same times. > > The injectors are not fired by turning this +12 on and off. They are > fired by turning the injector grounds on and off. A relay that was > stuck > on would not keep the engine from running normally. The relays stay on > continuously whenever the engine is turning anyway. > > The ECU controls the turning on and off of the injector grounds. The > ECU > pulses the injectors this way. The relays have nothing to do with the > pulsing. The ECU relay is on whenever the key is on. The fuel pump > relay > is on whenever the ECU tells it to be on. That is 99.99% of the time > that the key is on. > > Mark > > Rob Wright wrote: > >> There is 12 volts going to all the injectors all as soon as I turn the >> key on. I tried switching the relays since they have the same part >> number on them and it didn't help. What turns the relays on and off? >> Where is the engine grounded to the chassis? >> On Thursday, July 22, 2004, at 10:16 PM, Joel Walker wrote: >> >>> >>>> I am trying to get my 85 westy going but when I turn the key the >>> >>> fuel >>> >>>> starts and never stops. I pulled the injectors out and a couple are >>>> spraying fuel so I thought ok the injectors are bad, but when I >>>> disconnect the electrical plug from them they stop spraying which >>> >>> may >>> >>>> mean there is some sort of electrical problem. >>>> Any ideas? >>> >>> >>> try fooling around with those two relays in the black box above the >>> ignition coil. the one closest to the hinges of the box is the fuel >>> pump relay ... it powers the pump itself. the other one powers the >>> fuel injectors, and it might be stuck, triggering the injectors to >>> fire continuously. >>> >>> you might also have a bad computer that is triggering the injectors, >>> or just a bad wire from the computer to the injectors. >>> >>> good luck! >>> joel >>> >>


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