Peter Finn you are a genious, thanks a lot it helped me so well, I had a fuel economy problem due to a hig rpm now my problem is solved thanks to you man Have a good day
@@PeterFinnTheCarDoctor my engine is getting very hot, can't even touch the hood after a drive, but it shows that the temperature is still in the normal level. Radiator and water pump are also ok. What could be the problem?
An update, this is not fully correct. You have to wait for operation tempature and then short the TE1 & E1 at diagnosis port before adjusting the screw. By shorting the TE1 & E1 the ECU will not perfrom any idle up so you can setup the lowest idle rpm when hot, it should be 800-950 rpm depends you are fully stock, manual transmission, light weight flywheel or you don't want a second drop of rpm when AC kicks in. For the repair manual it suggest 800 rpm but for me i set it to 950 rpm so it never fall below 700 rpm even sudden clutch in or AC kicks in when hot (when AC is on the ECU will adjust your idle to 800 rpm no matter how low your idle is) If you don't short the TE1 & E1 and just adjusting the screw like the video, the ECU will later lower back the idle for you using the Idle Air Control Valve (IAC), then you have to back and forth the procedure until the IAC is fully closed and ECU cannot even lower the idle for you
Bro! Are you sure we need to short TE1 & E1 first? Before adjuting idle screw... From my knowledge and experience, when shorting TE1, E1. Idle rpm increases. But don't remember, it decreases or stays same rpm. Can you please reply
@@FarhanAlam25 of coz u have to short TE1 & E1, or else the ecu will shut the idle up to compensate the screw u just adjusted later. Even with TE1 & E1 shorted, it still aim for idle 700 for ac off & 800 ac on. if u want higher idle u need to do this several times until the idle up is completely off, and then will be ur desired idle
I was just about to do this, but found my problem. vac leak on the A/C idle up valve. was idling around 2000, now its back down to around 1000. Its still a little high, I'd like it around 700-800 but I can live with it now. cheers!!! If I don't find any other vac leaks I may still end just adjusting it. Thanks for the Video!!
Shouldn't you have waited for the engine to reach normal operating temperature before starting any adjustments? Because if at that temperature, the ECU might still be making settings for the engine to run at fast idle.
@@viktorialis9675 Today i had repaired a ecu of Toyota Corolla 95 and if you still drive that type car please recap ecu. That ecu is full of mess with leaking electrolytic capacitors. Etched copper paths of pcb thanks for capacitor juice. needed capacitors are 100uf 10v-1, 220uf 10v-1, 47uf 63v-1, 33uf 35v-1, 47uf 50v-1. Thanks me later.
Allen wrench is L shaped with 6 sides. speed up the idle speed turn the Allen wrench clockwise. Lock it in by using the end wrench clockwise to tighten the setting fixed.
Hi Peter thanks for all your videos. I have a 1994 Toyota Celica ST with 165,000 miles and have some idle issues. The idle is great in Park and in neutral but if I am at a stop light or any other situation where I am in Drive and stopped my idle wants to drop pretty low and the car vibrates a lot. Do you know of any things that could be wrong or what I should check for with this odd issue?
hi peter, I have 1992 toyota corolla and it seems it doesn't have such adjuster screw. By the way, the idle is high, about 1300-1500 rpm. I already clean the throttle body, but still no luck. Any suggestion / comment is really appreciated. Thanks
Hello Peter is it possible for you to send me one of these toyota corolla speed guage cluster lioe your corolla? I have 1.6l 1993 corolla with 131K km on it, when I try to give it gas to speed up there is no response and it does jot downshift, it slowly pick up speed. Someone recommended ignition coild replacement. My car also idles high rpm so when i shift in drive, the car jerks hard to engage in drive, it almost died onbme twice but never died and it never happened after that but the lack of power continues. Can you please advise.
Hi Peter, Jus seen your video today. So far could you support in advise detail further of why do we need to adjust it please? As I have long year used with corolla Year 1994 but don't really know about that yet. Thanks for sharing!
I had an issue on my toyota vios model 2003 when i service my throttle body. The rpm going high on 2000 rpm, and i decide to sent my car to service centre cause i expect it has to be reset. After the reset, the rpm still on 2000 rpm and the mechanic adjust the idle speed to low and he suspect my vsv is dead. After i run it by drive my car for a while...my rpm going to normal. My question is, should i adjust back my idle speed to normal? Because the mechanic set it to low...but rpm is on normal idle 800 or 900 rpm idle...thanks
I wish someone had a Toyota Corona 1988 ST170 so i could see how to change the idle speed on my car. Mine is different to this it has two wires connected to a wheel that when you press the accellerater the wheel moves and the car revs.
Hi Peter, can please help me to fix my Toyota sprinter 1996 idling problem? Once I take off my foot from gas paddle then straight my car off and RPM goes down to 300-400. I already cleaned throttle body, put new spark plugs, put new air filter. It’s so annoying
Hi Peter!! Im having an issue with my 88 corolla 4wd with the 4A-F engine. When the car is hot it will occationally miss in idle and run rough. The idle is 1000rpm. Cold start runs fine but the idle is very high. When Im driving the car it will hesitate or miss in 4th and 5th gear when accelerating. When i accelerate in 2nd and 3rd gear i havent noticed an issue. The car has sat for a long time. I recently added 10 l of new fuel and replaced the timing belt, sparkplugs and did a general service. I cleaned the ignition rotor and cap. Im not familiar with the 4A-f engine. I have 2 other corollas that are older with the 4A engine and 3A. What should I check and see what can be wrong? Thanks in advance, Esa.
Hi peter, I have a 2002 corolla S. Check engine light is on, giving me code p0301, ( misfire cylinder 1 ) After replacing the coils, spark plugs and fuel injectors, code p0301 keeps popping up. The car shuts off when I’m in reverse. I inspected the fuel pump and my battery everything works fine What could be the problem ?
so I have a Toyota tazz 2002 ..so I'd like to know...why is there oil at the bottom of the spark plugs when I remove them ? ...I have Tue problem with over fueling ?...I tried the thing with the idle screw that didn't work ....so I want to know to cut fuel is it clockwise anticlockwise?
@@PeterFinnTheCarDoctor sorry but it had to be a question not a statement am not a mechanic was jus asking the question..But jus saw i forgot to put a question mark..👍
I adjusted the screw both ways a few turns and the idle didn’t seem to change. Is there something else I can try to get idle speed lower? It’s stuck at 1200. Thanks!
Check any vaccum leak, water temp & it's sensor (the one to ECU not the the one to cluster or the raditor fan), ignition timing also. If all checked then maybe capacitance leak inside the ECU casuing it failure
i hv a toyota Ti Carina, where i hv found 'ECT PWR' button & 'ECT Menu' button near transmission, but i dnt knw what these button actually do?? Can u please tell me the function of these button...
You adjusting the wrong screw. U will screwed up the TPI sensor alignment. U should know how the IAC works and what voltage required on the electromagnets inside during cold idle and warm idle. During cold idle , I measured about 8V and the RPM was in 1.5 and the IAC valve is open little bit After warm up ,the voltage is O volt meaning the IAC valve is totally closed
Hey Peter Finn. I have a ae101 with a 5A engine. I know my idle valve is stuck cause I've seen it. I just got a new throttle body to replace it. Will this help my idle low problems? It runs low when ac is off and extremely low when on.
hello sir, my Toyota corolla 4a-fe 96 model, has high rpm idle at 1,250. when I lower the idle, it returns up by itself, I had the engine throttle body and IAC cleaned already, but still the same.. any idea what's wrong sir? thank you
Clean your throttle body valve with a carb cleaner or air intake parts cleaner. Check all your vacuum hoses and air intake hose for leaks and damage. Check if your coolant temperature sensor is bad. There are videos on how to do these in RU-vid and in Mr. Finn’s channel.
You really should take this down - this is not the idle adjust screw, it is factory set and should not be tampered with. My son screwed up his throttle body adjustment following this. If people have an idle problem with these cars, they should check for vacuum leaks first, then the TPS, and the idle air control valve.
Today i had repaired a ecu of Toyota Corolla 95 and if you still drive that type car please recap ecu. That ecu is full of mess with leaking electrolytic capacitors. Etched copper paths of pcb thanks for capacitor juice. needed capacitors are 100uf 10v-1, 220uf 10v-1, 47uf 63v-1, 33uf 35v-1, 47uf 50v-1. Thanks me later.
THIS IS NOT THROTTLE ADJUSTMENT!!!! That is so not ok! AISAN (Yes aisan not aisin) Throttles for Toyota SOMETIMES have a screw to adjust idle speed but it's under the rubber (right corner on top if You looking a fron of 'pipe' to manifold)! If Your throttle have no rubber in a corner that means this throttle has no screw to adjust!
I got the repair manual, which does mention about that right corner top screw. That is true for 4A-FE engines . The 3S-GE/GTE and 5S-FE engines as you see here in this video has it in that complicated spot.
Could you please guide me what the exact reason for my wired idling RPM. It’s 1988 corolla AE95 ‘4WD’ - 4AFE There is only 2 days between the 2 shots in my video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CqGDouenAMw.html Any help Would be very Appreciated 🙏🙏