Questions tagged [throttle]

Questions and discussions about a throttle. The throttle is a valve that controls the amount of air that is allowed to pass into a gasoline engine (diesel engines do not have a throttle in this sense).

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3answers
97 views

How to remove this tightener?

This is alfa romeo giulietta, in front of the throttle body.
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2answers
803 views

Should I give a little throttle after my car starts?

When I start up my 2003 petrol car, as soon as it fires I often give it a dab of the throttle, so the battery recovers. It's fuel injected, no carburetor or anything. I've been told this is pointless....
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2answers
1k views

Can an engine be 'too lean' at 0%/closed Throttle?

This is regarding an argument I'm looking to settle with my friend, over in particular a Triumph TT600 motorcycle. When off the throttle and above 6k RPM, the engine will 'hang' at 4.5k-5k for a few ...
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5answers
4k views

Gas pedal floored yet the car can't reach maximum speed

I'm running a manual Opel Corsa 2005 Sedan (engine code: C16SE, 1600cc). The problem I'm encountering is that the car won't reach its maximum speed of 200km/h as similar cars do. Instead, it stops ...
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1answer
1k views

Why do we need coolant in throttle valve body inlet in Opel Astra H?

Opel Astra H has an electric driven throttle valve. As I know, coolant in throttle valve body would control bimetal plate responsible for warming up. Why can't it control warm up process based on ...
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1answer
400 views

2008 Ford Fusion throttle sticking?

I have a manual-transmission 2008 Ford Fusion SE. It's a great car but I have been having some problems with it recently. Firstly, the throttle does not seem to close when I let off the gas pedal. If ...
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1answer
45 views

How to use ODB data to detect throttle related emission problem?

Based on OBD II Standard PIDs PID(hex) 11 Throttle Position value from 0~100% How could we use this data to predict if there is going to be a problem? https://en.wikipedia.org/wiki/OBD-II_PIDs
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1answer
54 views

Ranger putting oil inside the exhaust

My Ranger 2.2 Diesel 2013 model puts oil inside the exhaust and therefore discharges excessive smokes from the exhaust.
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2answers
496 views

p0123 - replaced TPS but still dies while driving

My brother has a '96 Plymouth Voyager. He drove it to my place the other day and on his way home it died within a couple of miles. The check engine light was on so I pulled the codes and am getting a ...
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2answers
668 views

Why is the throttle on my motorcycle jumpy?

The bike is a 1991 Honda Nighthawk with just over 180,000 miles on it. It is around 230ccs, and has a carburetor. This is my first bike, so I don't have any idea what is typical behavior for a ...
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0answers
36 views

I have a seemingly very hard wiring problem to solve

Further to my last question : I have a Renault Clio 1.2 2010 that keeps coming up with a P0638 (Throttle Actuator Control Range/Performance) error (according the the OBD2 device I have). One thing I ...
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0answers
61 views

P0101 and P2113 codes removal Kia Rio 2011

I have a KIA Rio Diesel car from 2011. With a diagnostic tool I have read the P0101 and P2113 DTC's: I had an old and problematic throttle body. I have replaced it with a completely new one and took ...
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1answer
82 views

Need help to fix code P2138 on a 2007 ES Lancer

This is a 2007 Mistubishi Lancer ES with a P2138 code. I have replaced the pedal sensor and a complete new throttle body and after clearing the code my engine light eventually comes back on and I ...
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0answers
114 views

Throttle Body is not close/open smooth?

i have hesitate RPM . today i check my Throttle Body and i think is not close/open smooth. its feel lag when pressing pedal slowly. or its okay? what you think? Visit https://www.youtube.com/watch?v=...
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0answers
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My 2010 Jaguar XK will very occasionally struggle to accelerate only when starting from low speed

new to the forum! My 2010 Jaguar XK will very occasionally struggle to accelerate when I am running it at low speeds of about 10-15 mph. When I try to go above 10-15 mph, the car will create a lot of ...
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0answers
72 views

Ford fusion throttle body?

I have a manual-transmission 2008 Ford Fusion SE. It's a great car but I have been having some problems with it recently. Firstly, the throttle does not seem to close when I let off the gas pedal. If ...
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0answers
440 views

2 Stroke 70CC Scooter Engine

I own a scooter which I blew the engine in Dec 2016. I since replaced the defective parts in it and it now runs great aside of one thing: Bottom end of the throttle is slugish (I'll elaborate) It ...
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0answers
695 views

350z limp mode and low oil

My 350z went into limp mode while I was highway driving, and the check engine light came on. I noticed that the oil was nearly nonexistent, and added oil. The car still wouldn't get out of limp mode. ...
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1answer
223 views

Honda CRV 2000 Horrible Throttle Response

Problem I have a 2000 Honda CRV with automatic transmission that has absolutely no throttle response at the low end, especially under load (meaning accelerating especially from standing). It's not so ...
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5answers
529 views

Full throttle and braking

I plan to implement a cruise control system on my old car using an arduino, using info from the speed sensor it will control the gas pedal etc.. I know I known, safety first.. I will be doing a lot ...
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2answers
452 views

Why Tachometer shows idle RPM range instantly when closing the throttle and clutching

I have studied that, RPM is the measure of how fast the Crank Shaft is rotating. Lets consider the following case. You are riding in some speed which shows the engine at 5000 RPM. Now you are ...
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2answers
102 views

Most economical acceleration range

I am designing a GPS based acceleration meter for car. I'm planning to give user some scores based on his various acceleration practices. Not going to the electronics part of GPS, i want to know in ...
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1answer
58 views

How can I extend my throttle cable by ~1"

The bracket that my right mirror screwed into broke off right near where it was welded to the handlebar, and I couldn't fix it so I just put a new mirror mount bracket to the right of it and moved my ...
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1answer
293 views

Vehicle alternator voltage/current output's relation with throttle / engine load

I was diagnosing my alternator to find out if it is working properly. It seems like it is doing its job well. Anyway, interesting thing I found out was that the average voltage output from alternator ...
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1answer
5k views

Engine halts when turning on AC

I have Wagon R (Maruti Suzuki) 2011 model with Petrol and CNG. Whenever I turn on the AC, engine stops. What could be the possible reason for this? This is happening in both cases: Idling as well as ...
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1answer
2k views

Bajaj Pulsar 150 decelarating problems while riding

2011 model which has run to 60000 kms and i use it on daily basis with regular oil change & maintenance etc... Yesterday night i rode the bike close to 20 kms and then came back home , it was ...
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2answers
179 views

Mustang V6 sluggish pickup during day

Have been driving my stang 2013 V6 for almost 2 years now. Right from the day 1 I have noticed that outside temperature somehow made my cars acceleration/ pickup however you call it become sluggish. ...
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0answers
17 views

IDLE Problem issue, and Throttle Body Specifications Honda Civic LX 1998

Where can I find the throttle body specifications for a Honda Civic Lx 1998, I am searching and I get different results? It is producing an issue in accelerating, and tachometer the dial keeps going ...
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0answers
22 views

Jumpy/laggy Throttle

Hello I have an issue with my throttle response in 1st and 2nd gear until around 2500rpm,I accelerate and a constant rate and is sluggish until 2500rpm then it jolts the power/ response back to normal ...
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0answers
40 views

Does a puddle of Seafoam cleaner indicate a vacuum leak?

Engine is "skipping", cutting out or what seems like a misfire (?) every once and a while. (Even more so when the AC is on). To start, did the SeaFoam throttle body cleaner, as shown here: How ...
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0answers
20 views

Coleman ct200u ex running

I just put a stage 1 performabce air intake kit, carb that's meant for it, and it doesn't properly run. It starts fine and everything was put on correctly. After half a second of trying to give it gas ...
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0answers
38 views

Mazda Demio 2002 75HP 1.5 high engine RPM on idle

I am the owner of Mazda Demio '02 1.5 75HP (engine code B5E). The car has an issue of high RPMs (more than 1000 and hestitating) on idle. What is interesting here is whenever I press and hold the ...
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0answers
25 views

My royal Enfield classic 350 is not accelerating upto full throttle

My royal Enfield classic 350 is not accelerating upto full throttle..... As we give acceleration in every gear it's acceleration is going till half throttle... From there it's not accelerating and ...
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0answers
42 views

Why is the engine sputtering even when there is sufficient fuel?

While kickstarting the motorcycle, the engine starts properly. But after travelling some distance, the engine sputters and turns off even when there is sufficient fuel. Then, after few raises to the ...
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0answers
3k views

If I don't have throttle body cleaner, what can I safely use as an alternative?

Pretty much as the title states, I need to clean my throttle body, but I don't have any 'throttle body cleaner'. Are there any other common solvents I could use instead, that would be both effective ...
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0answers
73 views

02 Honda Odyssey transmission revs up or doesn't engage at 25 when off gas and up-shifting [duplicate]

my 02 Honda Odyssey transmission revs up or doesn't engage at 25 when off gas and up-shifting. Here is what happens in steps: accelerate to 25 in second gear off gas and upshift to third immediately ...
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1answer
2k views

Driving car with half engaged clutch

Say I am driving my car (Hyundai i10) at 2nd gear. My clutch is engaged. As I increase my throttle position, rpm will increase and so will speed of the car till a point when the speed wont increase ...

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