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27-04-17, 09:00 AM | #1 | |
Grown up member
Join Date: May 2016
Posts: 53
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200 Turbo -engine down on power
Road test verdict from mechanic: "best 0-60 was 11 seconds. There is a intermittent hesitation/misfire under load at high revs. Cruises happily at 80 . Basically fine in normal driving but lacking if u try and drive it quick"
When new the car should do 0-60 in 8-9 seconds (but this would involve a clutch smoking start at 6000rpm!) We don't think it's producing full power (but its a fresh engine & turbo), and it appears to be producing the normal amount of boost on full throttle (can't remember exactly what the BAR reading was). We have checked the rubber hoses (vacuum etc.) and replaced several that had perished and were possibly causing air leaks, and it's been serviced +MOTd very recently. Anyone got any ideas what might be causing this modest power loss? Audi 200 Quattro Turbo 44 C3 2144cc 5cyl |
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27-04-17, 10:10 AM | #2 |
Ex Member
Classic Audi Club Member
Join Date: Dec 2007
Posts: 5,565
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Id get it rolling road tested for power first as youre more likely to get an idea of what the actual power is rather than the old "butt dyno" figures.
Youll also get a way better idea of whats happening under accelration and full load conditions in respect of fuelling and ignition. |
27-04-17, 11:56 AM | #3 |
Trickster
Classic Audi Club Member
Join Date: May 2009
Location: Heckling from the cheap seats, Phnom Penh, KoW
Posts: 7,006
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KG or MC engine?
KG Being similar to the WR, the inlet temperature sensor or connections to it may be worth checking.
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I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor |
27-04-17, 12:34 PM | #4 |
Senior Member
Classic Audi Club Member
Join Date: Jul 2008
Location: West Berkshire
Posts: 1,155
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Pipe on the exhaust manifold to wastegate could be blocked or the it union to it on the manifold
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[FONT] '76 Leyland Princess 2200 HLS '79 Scirocco storm '84 WR '89 coupe quattro '01 A2 1.4 TDI SE '14 A3 1.4 TFSI COD [/color][/size][/font] |
27-04-17, 12:59 PM | #5 |
Grown up member
Classic Audi Club Member
Join Date: May 2011
Location: Buxton
Posts: 745
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On my MB engine the pipe from air box to the turbo was collapsing internally restricting air flow resulting in lack of power. Easy thing to check and fix.
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1988 MB quattro 2012 S4 Avant |
27-04-17, 08:16 PM | #6 |
Senior Member
Classic Audi Club Member
Join Date: Jul 2007
Location: shrewsbury
Posts: 1,172
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i did have a similar symptom on my 200 , boost pressure was good , all the sensors were ok , eventually found the re was a metal sleeve in the turbo to inlet pipe had slipped down to partially impede the air flow through the cold side , , to be fair the missfire under load may point to electrical , plugs or leads?
let us know how you get on.
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27-04-17, 10:17 PM | #7 |
Grown up member
Classic Audi Club Member
Join Date: Mar 2013
Posts: 212
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Big improvement in performance on V8 after replacing rusty front to rear fuel pipes or may have been just putting in the new fuel filter
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28-04-17, 09:06 AM | #8 | |
making wooden things
Classic Audi Club Member
Join Date: Dec 2009
Location: cow land
Posts: 8,154
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Quote:
http://www.sjmautotechnik.com/troubl...ing/boost.html |
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30-06-17, 06:37 AM | #9 |
Grown up member
Join Date: May 2016
Posts: 53
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Good call, thanks.
I spoke to a 4x4 Rolling Road and he said that he could confirm where the issues were e.g. fuelling, ignition etc. but not how to fix them (as there's not much that can be adjusted on a car this old, not much in the way of engine diagnostics etc.). As such, it might need to then go on to a classic Audi specialist (who knows the common causes of problems with this model of engine) for the work to be done. |
30-03-18, 03:55 PM | #10 |
Grown up member
Join Date: May 2016
Posts: 53
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Replacing all injectors with new made a big difference to car's performance and ease of starting.
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