2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Bad Economy and Car Struggles to rev past 5000rpm

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Old 10-25-01 | 03:40 AM
  #1  
Turbo7's Avatar
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From: Adelaide, SA, Australia
Bad Economy and Car Struggles to rev past 5000rpm

Car is always serviced, including plugs.
what could my problem be?
Old 10-25-01 | 06:51 AM
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About a million things....

Be more specific, and post things like how many miles, usage, condition, compression check etc etc...
Old 10-26-01 | 09:57 AM
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Sorry, forgot to write all that down before.
I was in a rush.
Fuel usage: 8-9MPG
Compression: 95psi on all 3 sides of both rotors.
Car is unmodified, except a replacement cat a couple/maybe few years ago(previous owner)
It is a 1987 Turbo 2.
Old 10-26-01 | 08:46 PM
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From: Ft. Worth, Texas, USA, Earth, Solar System...
I would say your cat is clogged. ESPECIALLY since you mentioned it has a replacement cat- the "generic" replacements do NOT hold up well to the temps put out by a rotary.

Brad
Old 10-29-01 | 04:44 AM
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Wink

Well, low mileage could be caused by clogged cat(s), but this would show up in other areas too (like performance). In any case, a checkup of the engine and the exhaust system is in order (of course once you get all the minor things out of the way, like plugs, wires, TPS etc).
Old 10-29-01 | 08:44 PM
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From: Okinawa, Japan
I had the same problems until I gutted my cats.

jerk_racer@hotmail.com
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