Power loss at 4000

[Doug Yoder]

Is your exhaust system (cat. converter) plugged?  If the engine can't
move air out the exhaust, it can't take in fresh air/gas.  I had similar
problems with my '91 100 (same engine) and replacing the cat. got rid of
the problems.

-Doug

Marc Dugas wrote:

 > I can not figure out why when my 1987 european Audi, 2.3 I5, NF
 > KE-jettronic III, 136HP, 75000miles, Looses all power at about 4000 rpm.
 > I have canged the fuel pump, fuel filter, air filter, cap and, roter. I
 > run 0w40 synthetic oil.
 >
 > It has more problems when it gets warm. When you first start it, it has
 > great power all the way to about 4500 and dies at 5000, just will not
 > accelrate anymore, no matter what gear.
 >
 > I noticed the problem about a month ago I couldnt get above 5500 rpm.
 > But now Im limited to 4000. That is why I have all the new parts. I
 > thought putting all that new stuff on would help, but the problem never
 > changed.
 >
 > When it gets warm you can not get it above 4100 and it has no power
 > starting at 3500. Its not unstable at its max rpm, you just keep your
 > foot on the gas it will just stay there, untill you go up a hill or
 > something(no power cant climb hill).
 >
 > When you shift gears and drop the rpm's lower again it still stumbles a
 > bit, not misfireing, just like if you took your foot off the gas a bit.
 > Then it seems to regian itself and accelerates to 4000 and just sits 
there.
 >
 > When the engine is hot, like when you take a long highway trip, it just
 > dosent have much power at all. Makes the normal engine full gas engine
 > roaring noise just no power. When you keep it at 4000 for a period of
 > time and take my foot off the gas, sometimes I hear a bit of a ticking
 > sound. The engine also seems to run a bit hot, the fan comes on alot,
 > and when I turn the car off (i have a new thermastat also) the fan
 > usually stays running.
 >
 > It also has a very low, bit rough, but stable, idel at about 600 rpm.
 >
 > I suspect the hydraulic lifters are bad, but would this cause the rpm
 > problem. I think they could cause this problem. Just looking for some
 > advice before I start spending the beer money, (living in Austria) beer
 > is good here.
 >
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-- 
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|    Doug Yoder    |   wdy at zordok.net   |    http://www.zordok.net/    |
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|  Don't tell me the sky's the limit...                                |
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