I just fixed mines just now!! I was wondering why it was idling up and down. My 92' Honda Accord LX is my baby and now she purrs like a kitten. Thanks alot for the quick fix tip. ✌🏿😎✊🏿
2025 I did it, it fix it. 🎉🎉🎉 Now I just figured my mechanic straight lied to me for a year telling me he had checked the fast idle...IACV was replaced, but I did saved the factory Denso IACV because it still works. Gracias!!! from Bogotá, Colombia! 🙏
Thanks!👌 Even an honest mechanic would charge close to $100 just to diagnose the problem. This video is worth its weight in gold. Not only did my idle issue fix, but my tach needle suddenly started working again as well!!!
I got my 92 LX Coupe back in Spring 2020 and within the last year or so it start doing the idle surge thing. It does it when cold and when hot. It's annoying to say the least. I changed the IAC valve thinking that the 30 year old stock valve was the problem. No still have idle surge. I was thinking maybe I have a vacuum leak somewhere, but I didn't think about the fast idle valve. I'll definitely have to check and clean that valve,maybe it will solve my issue. Thanks for the tip.
@ my problem turned out to be a bad intake manifold gasket. I replaced it, which was not fun, and it seems to have fixed the problem. You might take some starting fluid or similar product and spray around the intake gasket, EGR, plenum and throttle body and see if you idle speed doesn't change, if it does you found a air leak.
When my 91 Honda Accord is in park the rpm will go up to about 2000-2300 then back down to the regular about 800 rpm I’d say. What might be the issue. Very thankful for any help
Check you idle control valve readjust it and your fast idle valve might need to be cleaned if that doesn't work check your coolant and make sure you don't have any air in the system if none of that works check your egr last
@@Regretwando wait till the car is cold then pull the radiator cap and see how much fluid there is if it's empty or low put some in then leave the cap off turn the car on till it gets warm then turn the heat on full blast and if there's air in the system you will see it bubling out of the radiator when everything starts moving
Thanks for the instruction on the idling, I'll do a cleaning on that valve. Any chance you ran into this problem? My 93 Accord sat for a couple of years while the kids were off to college, now I am trying to get it to run again but it gets overheat, the radiator hoses got bulging, looks like the water pump not working for coolant circulation? The water pump was replaced about a year before the car sat for a couple of years. Could it be the water pump causing or the thermostat or anything else could be the cause? Thanks for any advice.
It could be the thermostat or the heater core my guess would be the thermostat it probably cloged shut after sitting for so long. I would flush the whole system then change out the thermostat. There pretty cheap anywhere from 12 to 18 bucks with a new gasket
@@CB7Media Thanks for your respond, I've got a new thermostat and will put it in when I flush the coolant per your advice, hopefully it will fix the overheating issue. Keeping my fingers crossed that it is NOT the water pump.
I did all that exactly as shown but idle still going up and down. I took the plunger out and cleaned it with carburetor spray, however, did not put any transmission oil onto it or any other lubrication. Stuck it down, but I still get the idle running up and down. Need some help please
I have a 90 ex coupe with a 5 speed. I recently replaced my pcv valve and now coming off a dead stop it bogs down during acceleration in 1st gear. Can anyone help me.
1991 Honda Accord EX, 4 Dr Sedan, FWD, ... I have recently refurbished most parts in Engine area, @ Professional Mechanical Shop, included below: However, aft changing these, Idle speed was surging, 1k-2K in Neutral, and surging forward at stop signs in Drive, (so had to put in Neutral at Traffic lights, annoying ..).. then changed IAC twice, AND 3 mechanics can't figure out what is wrong even after adj idle via distributor,... they have cleaned IAC also,.. Disabling IAC w Solenoid has bypassed this problem,,, I have videos, of idle speed with IAC plugged in (Surging ), and w/o plugging it in (no Surging,..),... The following were changed bef I had this problem Spark Plugs, Wires, Alternator, Starter, Belts,... Fuel Tank, Fuel Pump, some Fuel & oil Lines,.. Radiator, Condenser, Hoses, Rad Cap,.. Timing Belt & Water Pump, Tensioners Oil Pan & Gasket, Car was parked for few yrs during Covid, but before that, the Car used to drive really well, high speed was smooth, 100-120-140++ kph easy,.. smooth, quiet, normal Idle,... altho Fuel Tank & Rad had started to leak, rusting, so had bought another car, and parked this one,.. Three (3) diff experienced Mechanics have played with IAC, and have changed both IAC valves (one w Solenoid was changed 2x!), and Fast idle Control Valve, but no luck. Currently, and even before these repairs, with IAC UNPLUGGED, car feels it has enough power, and has v good acceleration for a 23 yr old car, No sputtering ! (==> so NO vacuum leak?) & (NO defective Airflow sensor?),... I have seen videos of surging problems on TH-cam,.. and if anyone has any more suggestions,.. Thnx Az_99
Damn, ive owned 3 CB7s. This has fixed 4/5 idle issues. Other was a bunch of shit together. If you have idle surge, i will say that 80% of the time its gonna be this stupid plastic thermo valve
just to add, it made it worse from before… I was having the idle issue for a while, it would usually go to 1.5 at stops but drove fine for the most part, then the problem would just randomly go away by itself and stay for about a month and repeat itself whenever the car was driven too hard (i.e. speeding, high revving) but after i tried this and put some oil on the plunger it made it worse and now just revs to 3k even when im driving… It literally won’t stop and i’m forced to ride the clutch/brake after driving down the street or else it will go and jerk by itself without me even pushing the gas once
I’m not sure exactly why it’s doing that, but I’m thinking if you moved the throttle cable like in the beginning of the video, what if you accidentally misadjusted the cable, and that’s why it is accelerating like that. Check it and make sure it’s positioned there correctly, not being pulled, and check that the nut isn’t overnighted which can also cause the cable to be pulled, resulting in the high rpm/ acceleration.
I just fixed mines just now!! I was wondering why it was idling up and down. My 92' Honda Accord LX is my baby and now she purrs like a kitten. Thanks alot for the quick fix tip. ✌🏿😎✊🏿
2025 I did it, it fix it. 🎉🎉🎉
Now I just figured my mechanic straight lied to me for a year telling me he had checked the fast idle...IACV was replaced, but I did saved the factory Denso IACV because it still works.
Gracias!!! from Bogotá, Colombia! 🙏
U save me alot of money did it myself and work like a charm thanks u so much buddy
Best car video I’ve seen in a long time! Very well done
Thanks!👌 Even an honest mechanic would charge close to $100 just to diagnose the problem. This video is worth its weight in gold. Not only did my idle issue fix, but my tach needle suddenly started working again as well!!!
I just got me a CB7 bro thank you for your teaching video... professor ❤👏💪👌
You are welcome for sure!!! And welcome to the club slash family!!
@@CB7Media thank you bro 💪 blessings
same with me, i jus got me a cb7💪🏽
Repaired my issue. Thank you for the quick explanation!
Thanks... Fixed my 91 Seattle silver sunroof coupe.... Thanks again!!
Thanks man...it really helped me 👍
Did you also have the surging while driving. When you let off the gas ?
Thank you so much just fixed my 91
Awesome dude🙏🏼 It works🤷🏽♂️ Thanks🎉
Thanks, clear and good instructions!!
Very helpful video! Obligatory Liked & Sub'd!!!
I got my 92 LX Coupe back in Spring 2020 and within the last year or so it start doing the idle surge thing. It does it when cold and when hot. It's annoying to say the least. I changed the IAC valve thinking that the 30 year old stock valve was the problem. No still have idle surge. I was thinking maybe I have a vacuum leak somewhere, but I didn't think about the fast idle valve. I'll definitely have to check and clean that valve,maybe it will solve my issue. Thanks for the tip.
@thefilmguy Hey! I have the same issue, and also replaced the IACV on my 93 EX...issue remains cold or warm. Did this fix the issue for you?
@ my problem turned out to be a bad intake manifold gasket. I replaced it, which was not fun, and it seems to have fixed the problem. You might take some starting fluid or similar product and spray around the intake gasket, EGR, plenum and throttle body and see if you idle speed doesn't change, if it does you found a air leak.
@@thefilmguy thanks!!!!
DAYUM G! U got everything for everything thanks you!
What are you clean it with? Carburetor cleaner? Brake cleaner?
When my 91 Honda Accord is in park the rpm will go up to about 2000-2300 then back down to the regular about 800 rpm I’d say. What might be the issue. Very thankful for any help
Check you idle control valve readjust it and your fast idle valve might need to be cleaned if that doesn't work check your coolant and make sure you don't have any air in the system if none of that works check your egr last
@@CB7Media thankyou so much, do you have any tips on how to check if there is air in the system?
@@Regretwando wait till the car is cold then pull the radiator cap and see how much fluid there is if it's empty or low put some in then leave the cap off turn the car on till it gets warm then turn the heat on full blast and if there's air in the system you will see it bubling out of the radiator when everything starts moving
Whooooo were u been all my life...
😆 someone is a happy 🔧 r.
Will this help with the rough start in an 87 Honda Accord LX? I have to keep on the gas so it doesn’t die while shaking when warming up!
It's best way bro I already try and fix the fit my cb7 auto 93
Dose any know the name of the plunger, mine is broking.and im.trying.to.get one
I'm looking for one too
awesome video man
Thanks for the instruction on the idling, I'll do a cleaning on that valve.
Any chance you ran into this problem? My 93 Accord sat for a couple of years while the kids were off to college, now I am trying to get it to run again but it gets overheat, the radiator hoses got bulging, looks like the water pump not working for coolant circulation? The water pump was replaced about a year before the car sat for a couple of years. Could it be the water pump causing or the thermostat or anything else could be the cause? Thanks for any advice.
It could be the thermostat or the heater core my guess would be the thermostat it probably cloged shut after sitting for so long. I would flush the whole system then change out the thermostat. There pretty cheap anywhere from 12 to 18 bucks with a new gasket
@@CB7Media Thanks for your respond, I've got a new thermostat and will put it in when I flush the coolant per your advice, hopefully it will fix the overheating issue.
Keeping my fingers crossed that it is NOT the water pump.
@@johnlivingston9217 hello sir, any updates? Did the flush and new thermostat work?
@@Bluecollarpunk87 no, didn't seem to fix the issue of over heating with the new thermostat.
Maybe something else, I'll keep on looking.
Thanks brother worked great
I did all that exactly as shown but idle still going up and down. I took the plunger out and cleaned it with carburetor spray, however, did not put any transmission oil onto it or any other lubrication. Stuck it down, but I still get the idle running up and down. Need some help please
What did you use to clean the plunger, just transmission fluid?
Mine struggles after warm up, but is fine cold any pointers??
Thank you so much
That's the fast idle thermal valve. The idle air control valve is different.
Great video information. Can I use WD40 instead of transmission oil?
Your fucking awesome for this. Just replaced an alternator for this to be the possible problem smh !
I don’t have that setup in my 95 accord 2.2L manual mine doesn’t have that plunger tray
Mine isn’t located where he shows his idk where mine is at
I have a 90 ex coupe with a 5 speed. I recently replaced my pcv valve and now coming off a dead stop it bogs down during acceleration in 1st gear. Can anyone help me.
Saved me brother!
Thanks 🙏
bro just saved me thank you 😂
Yay! That was it!
Isn't the car supposed to be warm before you tighten it?
I'm gonna try this
1991 Honda Accord EX, 4 Dr Sedan, FWD, ...
I have recently refurbished most parts in Engine area, @ Professional Mechanical Shop, included below:
However, aft changing these, Idle speed was surging, 1k-2K in Neutral, and surging forward at stop signs in Drive, (so had to put in Neutral at Traffic lights, annoying ..).. then changed IAC twice, AND 3 mechanics can't figure out what is wrong even after adj idle via distributor,... they have cleaned IAC also,..
Disabling IAC w Solenoid has bypassed this problem,,, I have videos, of idle speed with IAC plugged in (Surging ), and w/o plugging it in (no Surging,..),...
The following were changed bef I had this problem
Spark Plugs, Wires,
Alternator, Starter, Belts,...
Fuel Tank, Fuel Pump, some Fuel & oil Lines,..
Radiator, Condenser, Hoses, Rad Cap,..
Timing Belt & Water Pump, Tensioners
Oil Pan & Gasket,
Car was parked for few yrs during Covid, but before that, the Car used to drive really well, high speed was smooth, 100-120-140++ kph easy,.. smooth, quiet, normal Idle,... altho Fuel Tank & Rad had started to leak, rusting, so had bought another car, and parked this one,..
Three (3) diff experienced Mechanics have played with IAC, and have changed both IAC valves (one w Solenoid was changed 2x!), and Fast idle Control Valve, but no luck.
Currently, and even before these repairs, with IAC UNPLUGGED, car feels it has enough power, and has v good acceleration for a 23 yr old car, No sputtering ! (==> so NO vacuum leak?) & (NO defective Airflow sensor?),...
I have seen videos of surging problems on TH-cam,.. and if anyone has any more suggestions,..
Thnx
Az_99
I cleaned it, and when it didn't work I replaced the whole thing and that didn't do it I dont know what else todo
You could have air in your coolant
Damn, ive owned 3 CB7s. This has fixed 4/5 idle issues. Other was a bunch of shit together.
If you have idle surge, i will say that 80% of the time its gonna be this stupid plastic thermo valve
Man I just did this and now my car is idling to 3k nonstop idk what to do :( it’s my only car right now and it’s basically undrivable at the moment
just to add, it made it worse from before… I was having the idle issue for a while, it would usually go to 1.5 at stops but drove fine for the most part, then the problem would just randomly go away by itself and stay for about a month and repeat itself whenever the car was driven too hard (i.e. speeding, high revving) but after i tried this and put some oil on the plunger it made it worse and now just revs to 3k even when im driving… It literally won’t stop and i’m forced to ride the clutch/brake after driving down the street or else it will go and jerk by itself without me even pushing the gas once
I’m not sure exactly why it’s doing that, but I’m thinking if you moved the throttle cable like in the beginning of the video, what if you accidentally misadjusted the cable, and that’s why it is accelerating like that. Check it and make sure it’s positioned there correctly, not being pulled, and check that the nut isn’t overnighted which can also cause the cable to be pulled, resulting in the high rpm/ acceleration.
Atf really isn't the greatest for seals... Breaks them down faster, best thing you could use is with lithium grease or sil glide
The Mexican kids across the street are dealing with this should I go be the hero?
Anyone else’s 92 accord dying immediately after it starts?
Nope
Idk where my map sensor is on the f22a1 it’s completely stock can mah one one know?
The map sensor is on the throttle body
MAP sensor is in the black box on the firewall between the fuse box and throttle body
Thanks so much