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reesa deutsch Posted on Apr 20, 2017
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97 civic lx 5spd loss of pwr & poor accel, eng surg on acc. Cold start prob & idle LOW whn eng WARM. new plugs & wires - $1200 last mo @ shop for sugr in tank & new fuel fltr & injects. Plz help me!!

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Marvin

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  • Cars & Trucks Master 85,242 Answers
  • Posted on Apr 20, 2017
Marvin
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Joined: Jun 20, 2008
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Has an engine control module fault test been run? Do that first to see what shows up.

5 Related Answers

Anonymous

  • 291 Answers
  • Posted on May 15, 2008

SOURCE: missfire

Locate you computer (right front kick panel) and tap on it with a pen while the car idles... Also flex it back and forth with your hands to see if the car runs rough or quits... You may need a new one.

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Anonymous

  • 2 Answers
  • Posted on Feb 01, 2009

SOURCE: 97 Camry Rough cold idle, weak accelleration and noisy exhaust

Lots of times the idle air control valve gets stuck on these engines. You can try cleaning it. Remove the air intake hose from the throttle body. Start the engine and spray throttle plate cleaner through the hole in the bottom on the throttle body. This will run the cleaner through the idle air control valve. make sure to keep the RPM's at about 2000 to 2500 throughout this procedure. You may need to install a new idle air control valve if it continues to happen.

Anonymous

  • 14 Answers
  • Posted on Apr 17, 2009

SOURCE: 1992 gmc chevy 350 wont idle when warm

This could be a number of things but i think that your problem sounds like a vacuum leak or an EGR problem. Try listening for leaks and try un-plugging the EGR solenoid valve one time.

Anonymous

  • 1 Answer
  • Posted on Jul 22, 2009

SOURCE: BMW E46 320d SE 2002 Poor starting from cold, OK when warm.

rub your **** on the key fob

scott

  • 532 Answers
  • Posted on Oct 24, 2009

SOURCE: My 1996 Ford F150 4.9l 5spd. rough idle, poor drivability, stall

try replacing the throttle position sensor

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1answer

How to adjust idle?

hot engine ?, cold or both,, EFI runs in 3 modes, cold ,warm and hot.

name it.

which engine option (displacement)??????



there is no idle adjust, that is the PCMs, job 100%, all the time.

Carbs are gone.

here is rule one for all EFI.

idle is the last thing to work correctly.

anything the causes a gross imbalance of engine power to engine load, under idle will cause , idle controls to fail.



low idling causes. (over 50 but, here ar basics)

1: AFR (air fuel mixture too lean) usually surges. (clogged or leaking injectors. or fuel pressure way to high)

2: air leaks, cause racing, so not that. (speed density car ,if is)

3: egr stuck open. low idle and misfire.

4: ISC stuck closed (IAC electric)

5: cam belt slipped, timing retarded, compression at 1/2 spec, and well, valve will bend soon....

6: CEL glowing running? can be in limphome, limp cancels Idle controls (in may cases) RTM read the FSM on DTCs.



if fails hot?, is hot = 180F temp or more? "thermometer time"

if not, the PCM goes , quite nuts.
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95 honda civic engine bogs down highway speed full throttle

is there a rattle under the car like the cat converter is bad when was the fuel filter last replaced
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!993 Explore 4.0l When I accele I feel a surge in power..

so you gave it a tune-up?

possible causes of of loss of power:BAD SPARK PLUGS AND OR WIRES AND OR DISTRIBUTOR CAP.

GASOLINE FILTER PLUGGED THUS CAUSING YOUR ENGINE TO HESITATE. "loosing power"

AMONG OTHERS BUT THESE ARE THE MOST COMMON.

maybe the engine is worn......old engines tend to loose pressure and they start eating the oil, and also start smoking real bad.

this one is another casue of power loss too.


1helpful
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94 civic erratic idle when warm

either low coolant or your IAC motor is acting up
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1999 honda civic lx automatick

there is a wiring problem with some of them the wire shorts under the intake manifold that runs to the alternater. also the alternator on them seam to have a mind of their own and only work when they HAVE to and test good when load tested replace alt if the wires arent shorted
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1999ford taurus rough idle

you are to replace thermostat
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Starting problems

check the spark plugs

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