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1993 Acura Legend REV Question

Tiny
RIFFLELPN
  • MEMBER
  • 1993 ACURA LEGEND
Engine Performance problem
1993 Acura Legend 6 cyl Front Wheel Drive Automatic

The car starts and runs good but won't rev over 4000rpm. Acts like it's governed there.
Tuesday, August 11th, 2009 AT 7:09 PM

7 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi Rifflelpn,

Is the Check engine light showing?
Was any repairs done prior to this happening?
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Saturday, August 15th, 2009 AT 8:26 AM
Tiny
RIFFLELPN
  • MEMBER
  • 4 POSTS
No check engine light is on. I don't know much about the car because I bought from a tow yard as am impound. I have checked for plugged exhuast and checked the fuel pressure. They are both fine. It's such a wierd symtom that I'm at a loss. Thanks.
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Monday, August 17th, 2009 AT 5:16 PM
Tiny
KHLOW2008
  • MECHANIC
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Symptoms described could be caused by a faulty/out of adjustment TPS or ECM so these are the 2 items next on your list.

When engine stopped revving at 4000 rpm, it just stays or is it hunting as if the engine is starving of fuel?
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Monday, August 17th, 2009 AT 6:43 PM
Tiny
RIFFLELPN
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  • 4 POSTS
The engine just cuts out like it hit a rev limiter. It will start again at about 3700, run up to 4000 and repeat.
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Wednesday, August 26th, 2009 AT 7:32 PM
Tiny
KHLOW2008
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Have you confirmed that the CEL shows at ignition ON and goes off after 2 seconds and does not come on while driving?
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Thursday, August 27th, 2009 AT 10:14 AM
Tiny
RIFFLELPN
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Yes. The check engine comes on normally at start-up. I have now replaced the TPS and the ECU.
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Wednesday, October 28th, 2009 AT 1:37 PM
Tiny
KHLOW2008
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Is the problem still there an exactly the same?

When replacing the TPS, was it calibrated?
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Thursday, October 29th, 2009 AT 12:26 PM

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