rough idle
#1
rough idle
anyone having a problem with rough idle. started at 10,000 miles toyota says there is nothing wrong because the computer is not coming up with anything . even though they can see the motor shaking.
#3
Re: rough idle
Originally Posted by rcdemon1
anyone having a problem with rough idle. started at 10,000 miles toyota says there is nothing wrong because the computer is not coming up with anything . even though they can see the motor shaking.
#5
no i used injector cleaner,that stopped it.the motor mount is another story.i have the same vibration that you are talking about.the motor mount took a while to brake in.it used to cause viberation all the time. now its only a little in first gear and when the a/c is on........frank
#7
Rough idle fix
This may not fix all rough idle's but it sure fixed 3 cars here in town.
Get you a can of Seafoam fuel additive and only this brand pour the whole can in at a 1/4 tank drive it about 30 miles then fill it up and it will be smooth as can be.
just our exper.
There seems to be a build up of gunk and carbon in the fuel system and this stuff rocks.
Get you a can of Seafoam fuel additive and only this brand pour the whole can in at a 1/4 tank drive it about 30 miles then fill it up and it will be smooth as can be.
just our exper.
There seems to be a build up of gunk and carbon in the fuel system and this stuff rocks.
#9
I used 89 octane gas and I no longer have that problem. I used to buy the cheap gas and then put some Oct Booster, or a Gas additive to keep it smooth. But I found that if I buy better gas it's just that same... However, I still put in gas additives once in a while to keep the injectors clean.
I hope this helps!
I hope this helps!
#11
Apparently this is a very, very common problem with Scions. I've brought my box to the dealership at least 3 times. The a/c runs extremely rough as hell, and even when idling without, it runs rough.
I'm clueless as to what to do. I think the next time I fill up, I might go up to 89 octane. I use Shell 87 and I heard that adding Plus or Premium has no effect on this car.
I'm clueless as to what to do. I think the next time I fill up, I might go up to 89 octane. I use Shell 87 and I heard that adding Plus or Premium has no effect on this car.
#12
my engine would occasionally idle rough with the supercharger and weapon-r header, but it was usually followed closely by a code for not having a cat, and as soon as i cleared it with my scangauge, the car went back to normal. really weird since that isn't a code that would effect that. always happened, only once each spring.
have you tried resetting the ECU so it trys to relearn everything to idle better?
have you tried resetting the ECU so it trys to relearn everything to idle better?
#15
# 1 cause is dirty injectors. SEAFOAM, REDLINE, BG PRODUCTS..... these all work.
PLEASE stay away from fuel additives other than these. The reason these other additives like OCTANE BOOSTER and others will actually add to the problem over time. They can also cause problems with your O2 sensors. These additives were designed to help older cars deal with newer fuel blends.
If you have no codes and a rough idle.....clean the injectors. Trust me on this one.
PLEASE stay away from fuel additives other than these. The reason these other additives like OCTANE BOOSTER and others will actually add to the problem over time. They can also cause problems with your O2 sensors. These additives were designed to help older cars deal with newer fuel blends.
If you have no codes and a rough idle.....clean the injectors. Trust me on this one.
#16
How do I go about resetting the ECU? I'm going to try that route first. If that doesn't work, fuel injector cleaner. I'll be going with Redline, as per suggestion. After, I'm going to try the 89 gas.
What happens if I put 89 or 93 gas into my car? I use Shell 87 (Regular) because I heard there's no benefit with higher gas grades. Plus there is a rumor (hopefully you guys will dismiss this) that stronger fuels are actually detrimental to our cars over time??
What happens if I put 89 or 93 gas into my car? I use Shell 87 (Regular) because I heard there's no benefit with higher gas grades. Plus there is a rumor (hopefully you guys will dismiss this) that stronger fuels are actually detrimental to our cars over time??
#17
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I put high grade in to do the cleaning for me and it makes it run great. I do it like it once a month cause of the price. But other then that it runs great! I also use seafoam every once and a while always helps clean to LOL!!!
#18
So what is everyone's recommendations? A stronger fuel or should I learn towards some additives to help clean the fuel injectors?
What about the MAF sensor or O2 sensors or whatever? Sorry, I'm pretty intermediate when it comes to cars, but nothing way too over my head.
What about the MAF sensor or O2 sensors or whatever? Sorry, I'm pretty intermediate when it comes to cars, but nothing way too over my head.
#19
IMHO, I think you're good with just cleaning the injectors and other sensors, try that first before getting yourself into a tub of chemicals. If that works, then that was the problem and that's all you needed. The other steps will be unnecessary. But if the problem persists, then that's when you take the other steps.
#20
How do I go about resetting the ECU? I'm going to try that route first. If that doesn't work, fuel injector cleaner. I'll be going with Redline, as per suggestion. After, I'm going to try the 89 gas.
What happens if I put 89 or 93 gas into my car? I use Shell 87 (Regular) because I heard there's no benefit with higher gas grades. Plus there is a rumor (hopefully you guys will dismiss this) that stronger fuels are actually detrimental to our cars over time??
What happens if I put 89 or 93 gas into my car? I use Shell 87 (Regular) because I heard there's no benefit with higher gas grades. Plus there is a rumor (hopefully you guys will dismiss this) that stronger fuels are actually detrimental to our cars over time??