Question about 2002 Toyota Camry

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Idles too fast on a cold 4 cylinder engine, otherwise fine. Do not know if adjustable. If so, where is idle screw?

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Fuel injected?could be a sensor i would take it to a mechanic and pay $25 to have the computer read out to see if any error codes are present.

Posted on Mar 18, 2011

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92 chevy idles real fast on cold start up, then after run warming up runs fine


Not an uncommon issue for one to idle fast while cold but , 2000 rpms is a little higher than normal. May want to check the engine coolant temperature sensor for proper voltage and the coolant level. Also, check for small vacuum leaks around the throttle body gasket.

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1985 trans am idles to fast cold


on passenger side, you can adjust the choke idle, it is a little screw underneath the choke base on the quadrajet...if it is a quadrajet car

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Idles fast problem


That would be your engine "choke" functioning. It's not a problem. The choke engages when engine is cold and shoots extra fuel to the cylinders to idle the engine up especially in cold with. Once the engine has sufficiently warmed up, the engine will idle back down.

Jun 20, 2012 | 1987 Honda Accord

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I just rebuilt my F-150 1 barrel Carter carb (1985)once started runs great under all power ranges.Problem? Hard to start.


should adjust the butterfly to about 3/8" opening at 50 degrees farenheit when engine is cold. Usually about 1 mark to the lean side on the choke spring housing. If unsure set the choke to the center mark than richen up one mark at a time until the engine starts and idles up when cold after properly setting choke by fully depressing and releasing the accelerator before cranking. If it doesn't idle up enough turn up the fast idle screw 1/2 turn at a time. Another common problem with the YFA is the choke heat riser tube rusting off at the manifold and the choke not unloading when the engine warms. Install a new riser tube after using a drill bit the same diameter as the tube to drill out the remainder of the old tube in manifold before inserting the new tube and attaching to choke housing.

Aug 04, 2010 | 1985 Ford F150

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I have a 1987 Susuki Samurai, 1.3 engine. Cold start is idles at 2000 rpm up to 2200 rpm. Is this normal? Its seems a little fast. How do you adjust the cold fast idle speed? Thanks, Randy


Yeah it sounds kinda high. There is no adj except for the idle screw on the throttle, the computer does the rest, if it has one. If not, then you can adjust it some how. If carbureted, check for 2 little screws in the front, and check the choke, If throttle body, then just the idle screw, the idle should be around 1000. Hope this helps.

Jul 03, 2010 | 1987 Suzuki Samurai

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What kind of carb does the 76 c10 4x4 come with need to adjust


mcdevito75 here, The fast idle is needed when the engine is cold to make the air and fuel mixture rich to keep the engine running while cold, the carb. choke doew this with a bi-metalic spring in that balck round box on the side of the carb, a screw also hepls keep the choke closed until warm up, this screw can be adjusted tpo control how tight it holds the choke cloesed, here"s how to adjust this screw to slow fast idle speed, Locate on the carb, where the gas pedal connects, have a friend operate the gas pedal with the engine off, once you locate the linkage, you"ll also see 2 screws with springs around them, 1 is for fast idle the other for regular idle, you want the fast idle screw, notice this screw will lay against and Half moon shaped tab, while the other screw lays against a shaft, you need the screw that lays against the half moon shaped tab. Start the engine and step on the gas pedal slightly and relaease, at the screw that lays against this half moon, simply turn it counter clockwise or toward you just 1 2 or 3 turns very slowly, you'll hear the fast idle come down but you don"t want the fast idle to low, listen to the engine very carefully, slow it down just a bit, it should still race though but not out of control. Of course for a full carb, adjustment the shop should handle that., but this info will help.

Mar 29, 2010 | 1978 Chevrolet C1500

1 Answer

Honda Accord 1991 idles high then low


)The fact that thge engine idle fluctuates when it is cold indicates that the Fast Idle THermo Valve is out of adjustment.
This valve is located ot the front of the intake manifold on the driver's side just below the accelerator cable. To adjust it, wait until the engine is cold (best to do it first thing in the morning).
Remove the two screws holding the cover on and start the engine. There is a brass needle sticking up through a plastic ring that has two slots in it. With the engine idle fluctuating, use a thin flat blade screwdriver to SLOWLY turn the ring CLOCKWISE
until the idle stabilizes. Once done. put the cover back on withg the two screws and you should be done.

Jun 04, 2008 | 1991 Honda Accord

2 Answers

87 RX 7


rx7`s should rev to 3000 when started cold then it should settle to 750 to 1000 after about 30 to 60 seconds.
mine suffers a similar problem. so far I have been told various answers, mostly involving the bac valve, lambda sensor, air flow meter, etc. try starting of by adjusting the idle adjust screw (on top of the throttle body under plastic cover) this may be all it is. I have not had time to do mine. Its been fine otherwise and idles fine after a few minutes. mine is non turbo 87.

Jun 04, 2008 | 1987 Mazda RX-7

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