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#1
11-19-2006, 11:48 PM
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Maybe I Found My Problem (One Of Them)
Today, I was checking the 420SEL project car. I started it up, it starts fine now due to the diode I added to the fuel pump relay, and it was running really poorly. So I checked the fuel pumps. One is easy to check and the other is back behind it. While I was checing the hidden pump, one of the wires came right off complete with alot of corrosion. Looks like I have some rewiring to do.
I'm not getting an O2 signal either. I'm going to clamp on a ground wire and then check the signal, using my O'scope.
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Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952. 
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#2
11-23-2006, 02:11 PM
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One inop fuel pump on a dual pump set-up can cause problems. I don't recall if it is just starting problems or running problems or both off hand. Maybe after getting good connections at the pumps you can try running without the diode you added?
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Mike Tangas '73 280SEL 4.5 (9/72)- RIP  Only 8,173 units built from 5/71 thru 11/72 '02 CLK320 Cabriolet - wifey's mid-life crisis 2012 VW Jetta Sportwagon TDI...at least its a diesel Non illegitemae carborundum.
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#3
11-25-2006, 11:10 AM
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Yesterday, I replaced the broken wire on the fuel pump. Both pumps run but running is no better. When I jumped the fuel pump relay sockets 7 and 8 to test my fix, I heard fuel circulating in the hoses and pipes in the engine compartment. Maybe my fuel pressure regulator is bad.
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Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952.
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#4
11-25-2006, 04:05 PM
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If your problem is at idle, you can momentarily pinch off the return hose. You could also run a fuel volume test, then see how the fuel looks also after the volume test. Never heard of someone making a comment on hearing fuel circulating.
Gilly
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Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)
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#5
11-25-2006, 08:38 PM
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The diode I added only works during starting to power the cold start valve. It serves no other function.
Why does it sould like there is air in the lines? Fuel pressure regulator, accumulator?
__________________
Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952.
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#6
11-25-2006, 08:42 PM
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Not sure on the noise.
What are the problems (symptoms) with the car? Is that a single wire or 4 wire O2 sensor? Gilly
__________________
Click here to see a photo album of my '62 Sprite Project Moneypit (Now Sold)
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#7
11-25-2006, 08:39 PM
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Quote:
__________________
Regards Warren Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL ENTER > = (HP RPN) Not part of the in-crowd since 1952.
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