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Old 01-24-2003, 10:06 PM
Registered User
Join Date: May 2002
Location: Orange County,CA
Posts: 190
e320 starting problem- fuel regulator?

I have a 94 e320 that will not start off and on. Only way to start is stepping on the gas pedal about half way while turning the ignition. I do have the new OVP (checked the part number), wiring harness. Can it be the fuel regulator?

68 280SE Coupe restored
01 Audi A8L
05 Volvo XC90 AWD
85 CJ7 (Rockcrawler) GM 5.3 Vortec
02 Excursion XLT 4X4 PSD 700lbs. torque
78 Jeep J-10 4x4 (project)
84 Jeep Wagoneer (donor vehicle)
02 Carson HD Car Hauler

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Old 01-25-2003, 11:01 AM
Registered User
Join Date: Aug 2002
Location: Central Asia
Posts: 104
Seems like your car has a vacuum leak which increases the amount of air in the air/fuel mixture or your car's fuel distibutor is adjusted to supply the lean fuel.
Last week I was having the same problem on my W124 230E. It turned out the the hose coming from the idle control valve was deattached.
Good luck.
1989 230E, 8v, 166.000 km, updated to 94/95 trunk & hood
2002 Daewoo Nexia 50.000 km
1987 VW Jetta GLE 16V, Recaro seats
1982 Volvo 240 DL (lovely car!)
and few more american cars.
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Old 01-25-2003, 03:11 PM
Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,538
I disagree. A vacum leak would cause your car to idle terribly bad. Vacum leaks are not really extra air in the system. Vacum leaks are better described as false air.

My guess is a fuel pressure regulator, fuel accumulator, or a fuel pump going out.

Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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