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#1
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anyone good with turbo volvo's?
Car is a 1996 Volvo 850 GLT wagon. I am the twelfth owner, mileage is unknown, has had at least one engine replaced. This is a $450 beater I bought for the winter that has grown on me like a fungus. Car was seriously neglected before I got it.
Lately, since the temperature has dropped well below freezing, my 850 is lacking power under full boost. The boost gauge is reading high and the car seems to hesitate. I have hit the fuel cut a few times due to my turbo control valve sticking. Boost increases rapidly but the car does not accelerate accordingly. It actually accelerates when I start letting off the pedal and the boost drops (not hitting cut off). can't go full throttle on the freeway on ramp for example. Car has new plugs, wires, cap, rotor, maf sensor, front O2, air filter and fuel filter. No oil under the cap and rotor or the cam sensor. P0133 fault since I bought it, did not affect anything in warmer weather and I have changed the front O2 since. Believe that P0133 is actually the rear sensor since the Volvo fault for the rear will set the same P fault as the front. Passed a smog test six months ago (second try after basic tune up) Fuel economy has been dropping as well. All the parts listed were changed to rectify the problem, not prior to the problem. Rechecked the plugs, showing lean. Thinking it may be fuel pressure related, but wanted some opinions before I try a pressure regulator. Possibly not increasing fuel pressure according to the boost and it's going lean? I have done all the basic checks I can think of except checking the fuel regulator for leaking. Also used only the recommended Volvo plugs and correct bosch O2 sensor. running shell 91 fuel. Car is bone stock. thought I would try here as I have had luck with my Mercedes issues but nothing on the Volvo forums yet.
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1982 300sd, new project car to restore It doesn't matter if you know what you're doing, as long as you look like you know what you're doing. |
#2
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Does either of these help?
http://volvospeed.com/vs_forum/topic/156579-modded-850-turbo-boosting-but-not-making-power/ http://www.volvo-forums.com/t42913-94-850-turbo--sudden-loss-of-power.htm
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ... 1995 E 420, 170k "The Red Plum" (sold) 2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp 1967 Mercury Cougar, 49k 2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold) |
#4
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check valve on your return line is not sealing correctly allowing the fuel system pressure to drop below a useable pressure
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1985 300D 198K sold 1982 300D 202K 1989 300E 125K 1992 940T "If you dont have time to do it safely, you dont have time to do it" "The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." |
#5
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Quote:
http://www.matthewsvolvosite.com/forums/ http://volvospeed.com/vs_forum/
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CENSORED due to not family friendly words |
#6
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anyone good with turbo volvo's?
Don't know much about these, only my 327 powered FJ40 got spanked by a Turbo Wagon
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Happy Benzing Darryl, Hill 2005 SL55 AMG Kleemanized 1984 500 SEC 1967 W113 California Coupe [SIGPIC] https://picasaweb.google.com/lh/myphotos |
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