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1988 300e with #4 code
I have a hard starting 300E,you have to depress accelerater to start,dies at idle occassionally.check engine light is on with #4 code,any suggestions?
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#2
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Answer:
Jim Forgione's DIY articles
http://pages.prodigy.net/jforgione/MB_S500.html code reader info Early 16 pin code reader info Have a great day.
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ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
#3
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I didn't know a 1988 model threw codes.
My CEL came on when my OVP went south. At the time my car would start and die...
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC] |
#4
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code 4 is the air flow position indicator, went thru volt test and ohm test all good also checked at the ecu and at wiring plug ,all good
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#5
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you must really check out the "normal" causes of this problem -- bad idle control valve hoses, bad boot between air flow meter horn and throttle body, OVP relay, fuel pump relay, etc.
Any air leaks between the air flow meter and intake valves (including worn valve guides!) will cause starting and idling problems on KE-Jet systems. Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs! |
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