Cold Start Valve

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JWMason
Posts: 30
Joined: Tue Jan 12, 2010 4:37 pm
Location: Virginia Beach, Va.

Cold Start Valve

Post by JWMason »

Can't get it to fire Replaced valve, thermo time switch and combo relay.
Also cleaned every connection that I know to be associated with this criter.
Would it be the ECU?

Thanks
Jerry
1988 M5 Black/Natur
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socalfiver
Posts: 229
Joined: Wed Jul 21, 2010 12:31 pm
Location: Los Angeles, CA

Post by socalfiver »

Is it getting voltage at the valve on startup? If not, it's going to be the ECU.
"Get it while you can." -Janis Joplin

1980 528i Automatic, "Frau Blucher"
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JWMason
Posts: 30
Joined: Tue Jan 12, 2010 4:37 pm
Location: Virginia Beach, Va.

re: cold start valve

Post by JWMason »

Nothing there... I am now firing it off the battery through a dash mounted switch. Now I can determine time and temp during which to use it. This will work untill I locate/purchase a known good ECU

Thanks
Jerry
1988 M5 Black/Natur
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wkohler
Posts: 1063
Joined: Fri Jul 11, 2008 7:25 pm
Location: Phoenix, Arizona

Post by wkohler »

Are you getting spark? That's a separate system.
JWMason
Posts: 30
Joined: Tue Jan 12, 2010 4:37 pm
Location: Virginia Beach, Va.

re:cold start valve

Post by JWMason »

Spent a little time this afternoon useing the Bently as a guide. The problem is no path to ground through the temp/time switch. I'm getting approx. 11 volts on both sides of the connector when cranking. Any ideas out there?
1988 M5 Black/Natur
JWMason
Posts: 30
Joined: Tue Jan 12, 2010 4:37 pm
Location: Virginia Beach, Va.

re: cold start valve

Post by JWMason »

Got it...Bad splice. Leads to temp/time switch had been reversed when installing new connecter during previous ownership
1988 M5 Black/Natur
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