Mechanical

Tiny
FATBOY83
  • MEMBER
  • 1992 HONDA PRELUDE
  • 4 CYL
  • 2WD
  • MANUAL
Why does my 1992 honda prelude hesitate when driving, then stalls out
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Sunday, July 24th, 2011 AT 7:47 PM

9 Replies

Tiny
KHLOW2008
  • EXPERT
It could be anything from bad spark plugs to engine mechanical problem.

Most common causes for such problems would be sprak plugs, its wires, distributor cap and/or rotor.
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Sunday, July 24th, 2011 AT 8:03 PM
Tiny
FATBOY83
  • MEMBER
Thank u, I changed out the spark plugs, the rotor and cap are fine, the fuel pump, filter and fuel pressure regulator have been changed out also but stills stalls out when driving it
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Sunday, July 24th, 2011 AT 8:15 PM
Tiny
KHLOW2008
  • EXPERT
If the engine is difficult to start after stalling and would restart easily after waiting a while, it could be due to a faulty PGM-FI main relay. Remove the relay and resolder the circuit board and retest.

If it stalls only when slowing down and can be kept running with pressure on the gas pedal, it is a fault with the idling circuit, which doulc be due to a dirty throttle body and Idle Air Control valve. Cleaning the throttle body and IAC should resolve the problem. You might have to readjust the idling speed after clening the components.
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Sunday, July 24th, 2011 AT 8:29 PM
Tiny
FATBOY83
  • MEMBER
It stalls while im pressing the gas pedal, then if I keep it in the same position, on the gas pedal, the car will lose power then the gas will kick in, it does this on any gear, I added more ground wireing to the engine thinking that it had a weak ground, but I also added throttle body spray to the butterfly, I heard its a pain in the but to clean the throttle body
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Sunday, July 24th, 2011 AT 8:35 PM
Tiny
KHLOW2008
  • EXPERT
Cleaning the throttle body is not difficult. Whoever told you that must have never done the job before.

A proper cleaning would require the throttle body to be removed but if you remove the air cleaner hose, using carb cleaner to spray nto the throttle body and scrubbing the internal part of the barrel with throttle fuully opened should do the trick. The IAC would have to be removed but you need not take everything out. Just remove the holding bolts, together with the fast idle (cold start valve) and spraying carb cleaner into it should allow you to clean it reasonably.

The symptoms you are describing does not seem to be a fault with the idling system, more likely to be the thrpottle position sensor, located oat side of throttle body.

Is the Check Engine Light indicating?
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Sunday, July 24th, 2011 AT 8:49 PM
Tiny
FATBOY83
  • MEMBER
So u think the sensor could be bad?
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Sunday, July 24th, 2011 AT 8:51 PM
Tiny
KHLOW2008
  • EXPERT
Is the Check Engine Light indiating?
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Sunday, July 24th, 2011 AT 8:54 PM
Tiny
FATBOY83
  • MEMBER
No, not at all
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Sunday, July 24th, 2011 AT 9:19 PM
Tiny
KHLOW2008
  • EXPERT
Have the TPS tested to see if it is faulty.
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Sunday, July 24th, 2011 AT 9:26 PM

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