Question about Mazda 323

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My mazda 97 familia idling makes to much high around 2000rpm every time i start it and never drop down until i set to reverse or drive (AT) then it backs again to high mode if i set the transmission to park or neutral

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Hello! I suspect a defective Throttle Positioning Sensor (TPS)...It is bolted to the side of the throttle body and has the following wire colors...Light Green/Red...Blue/Yellow...And Black/Red...See picture...

my mazda 97 familia idling makes to much high - saailer_156.jpg

Posted on May 18, 2011


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I have a 1989 Mazda 323, when cold engine idles very high, when very cold it idles so high that rev limiter kicks in, and it revs up, limiter kicks in, revs up limiter kicks in, once it warms up idle drops...

Have it looked at by a dealer,iam not sure here but i think you have a vacumn leak like the feed pipe to the servo split but really you need a mechanic who works on these cars day in day out and they will go straight too the problem for you

Jan 18, 2015 | 1989 Mazda 323

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Toyota corolla hatch 2002 idle at 2000 rpm when

All the above is normal , except 2000rpm is a little high at idle . can be adjusted down to 1500rpm. the computer adjusts the engine speed . in drive the transmission loads up the engine idle drops to 1000rpm . in park engine unloaded rpm increase all normal.

Sep 17, 2014 | Cars & Trucks

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When I start the car it stays at 2000rpm for a few moments then drops down. I'll drive for a few minutes then put it in park and it revs up and down.

idle air control valve is bad replace it. at start up choke control runs till warm up while driving throttle opening controls engine at idle ,the idle air control valve.

Aug 01, 2012 | 2005 Chevrolet Aveo

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I have a 1996 Mazda Protege 1.5l LX. I just cleaned the IAC valve today as well as replaced the thermostat and then put everything back together. During the rebuild the distributor cracked around where one...

Regardless of anything else, that cap needs to be replaced. It has to be moisture free to properly operate or you'll get arcing and that can cause even more damage.

A vacuum leak will cause the high idle and it is possible the IAC could be damaged. Most of them have small nylon parts in them and get damaged if you use certain cleaners (like carb cleaner) on them. You've also got that ridiculously complicated and expensive IAC (around $400 new) so I'm sure you don't just want to replace it. I've seen used ones on Ebay for around $50. I would save that for a last ditch effort.

Vacuum leaks can be difficult and frustrating to find. A smoke machine helps but they are expensive. If you are a smoker, you can always pick a vacuum port on the engine to blow smoke into. Then, you just look for anywhere smoke is escaping and you found your leak.

Since you had the IAC off, I would pay special attention to the hoses there and the seal between the IAC and the intake.

Jan 05, 2012 | Mazda Cars & Trucks

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The idle of my masda 97 sedan is to high and going up and down even if it is not accelerated?

Hello! The Idle Speed Control (ISC) valve is defective or fouled with carbon...It is located below the throttle body and has a 2 wire connector...Start engine...When engine is warm, disconnect the ISC...RPM's should drop....If not, The valve is at fault...If you have the expertise, remove the valve and inspect the ports for carbon deposits...Clean with throttle body cleaner,,,While valve is off...With plug connected...Watch the right port...As the valve cools the port must open...If not, replace the valve...See picture below...Valve is expensive (around $350)...Guru...saailer...


Jan 09, 2011 | 1993 Mazda Protege

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Hi, I have a 1985 toyota corolla ae82 engine and it has recently been in the garage for idle problems initially. I first took it in running rough and the machanic traced it to the auto choke which he...

if that 2000rpm is start up from cold,,,its still a bit high! but only a bit,,,should be nearer 1500rpm cold out of gear,,,,
when warm it should run at about 850---900rpm-----out of gear-
950rpm for an auto out of gear,,
in gear an auto will drop to about 850rpm so that the motor wont stall when holding the brakes down i would take the car back,, but they may wont it over night so they can set the revs up from cold,,i have a felling that auto choke is still playing up a bit

Aug 07, 2010 | Toyota Corolla Cars & Trucks

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2000 Silverado 4x4 transmision problems 1. Will not go into reverse. 2. High pitched whine when put in gear. 3. When starting from stop, does not shift out of first gear until speed reaches 25 mph and rpm...

Before guessing at transmission problems, check the fluid level (car warmed up, engine running in Park on level ground) and have the PCM scanned for trouble codes FIRST.
Secondly, put a line pressure gauge (or visit a local trans shop) on the pressure test port and go for a drive to verify proper line pressure. Base pressure at idle in P,N,OD should be around 70psi and around 140psi in R. Max line pressure should be at least 190psi at WOT in 1st or 2nd, 225psi is optimum. If base pressure is low, trans or pump is worn out. If max pressure is low, check EPC solenoid. If reverse is slow to engage, and line pressure does not come up to at least 130psi in reverse, replace the boost valve with a Transgo 0.500" boost valve (easy fix in pan)
Possible causes to your transmission issue:
1. Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the trans may help (must remove valvebody), or adding a high-viscosity additive such as Lucas Transmission additive or other seal restorer product. May also have worn boost valve (can replace in the pan).
2.1st and 3rd only, no 2,4 or R; sunshell is fractured or splines are sheared off. R&R. Try not to run or drive the car or further damage could result.
The transmission will default to max line pressure causing the whine you describe.
Thank you for using fixya and good luck.

Mar 24, 2010 | 2000 Chevrolet Silverado

1 Answer

I have a high idle/overheating 1989 Toyota Carona GLXi 2.0 litre DOHC fuel injected. (New Zealand/Japanese import) I have 2 problems, and probably related. the car is overheating (heaters have stopped...

Check the hoses - especially all the little 10mm hoses that connect vacuum pipes, etc.
There is a device in the throttle body called an Idle Stabilisation Valve - they get gummed up, especially on such an old car, and with NZ's low-petroleum fuel - lots of additives in NZ gas.
They are easy enough to clean - look for a lead plugged into the throttle body near the butterfly - you can unclip it and pull it out complete - they are usually about 15cm long, by about 4cm wide.
Spray it liberally with carb cleaner and make sure it can move freely. If not, a wrecker is the best bet - they are pricey new.
Good luck.

Aug 20, 2009 | Toyota Corolla Cars & Trucks

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