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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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7
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2answers
210 views

How much oversize should you target when choosing a throttlebody?

This is in addition to my previous question about throttle bodies. I know it may sound a bit subjective, but I think it has a clear technical aspect, and I have done a considerable amount of homework. ...
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5answers
3k 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 ...
6
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2answers
5k views

What could cause the throttle to stick in my Ford Ranger?

I have a 1999 Ford Ranger pickup with about 242,000 miles on it. After driving for 10-20 minutes the throttle will start to stick when I take my foot off the pedal. After a couple seconds, the engine ...
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0answers
30 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
24 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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0answers
13 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 ...
6
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2answers
5k views

RPMs jump to 2500 when clutch is disengaged or transmission put in neutral

Good morning all. I drive an 05 Chevy Cavalier, 2.2L, 5-spd manual trans. Lately I've been having issues which I am told is throttle related. As I'm driving for a little bit (time varies) I go to ...
0
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0answers
31 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 ...
1
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1answer
55 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 ...
8
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7answers
6k views

Why does a petrol engine need to maintain an air-fuel ratio, while a diesel engine doesn't?

This simple question has been bugging me for a while. The amount of fuel injected into a petrol engine is calculated according to the amount of air entering through the throttle valve (as measured by ...
0
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0answers
15 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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1answer
39 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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0answers
16 views

Vitz throttle hesitation on bumps

I own a Toyota Vitz 2009 and am facing a unique problem. The car loses acceleration at bumps and shifts automatically into neutral with no response from pedal but the engine keeps on running. The ...
1
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1answer
98 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 ...
0
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1answer
4k 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 ...
6
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5answers
47k views

Car turns off due to low RPM, only when starting car

Background: I had my 2003 Infiniti g35 at the mechanic to fix an electrical problem (turns out remote starter wires were rubbing and causing a short) and to fix an oil leak. All in all they changed ...
0
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0answers
40 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 ...
0
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1answer
1k 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 ...
3
votes
2answers
480 views

Seat Toledo engine stalls when warm

I have a 2001 1.6 16v Seat Toledo. Short story: My car randomly stalled when the engine warmed up to operating temperature and I could not restart until it cooled down. A mechanic cleaned the ...
0
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0answers
2k 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 ...
5
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1answer
1k views

Should an automatic drop gears while driving flat without using any pedals, or should it cruise?

I fixed a problem with my accelerator pedal, which caused a different unexpected change to how my automatic behaves. Since it's my first automatic (I normally drive manuals), I want to know which is ...
9
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1answer
5k views

Idle gets stuck at 2000RPM

I have a friend with a 1989 Toyota Camry Wagon and the idle occasionally gets stuck at 2000RPM. In order to get the idle unstuck, we have to press down the gas, kick up the revs and then it will ...
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0answers
100 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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3answers
87 views

How to remove this tightener?

This is alfa romeo giulietta, in front of the throttle body.
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0answers
23 views

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 ...
2
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1answer
276 views

2014 Ninja 300 idle/throttle issue

Back Story Recently my bike had an issue twice while riding that the throttle seemed like it was sticking. I'd be accelerating and when I let off the throttle, it would continue to accelerate. It ...
2
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0answers
56 views

2000 Sierra 1500 4.8L Engine not revving properly for several minutes after start

For the past couple weeks I've been consistently having a weird issue with my 2000 Sierra 1500 4.8L when I first start it up. The engine will start and idle fine, but when I give it gas the engine ...
2
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0answers
16 views

06 Jeep Cherokee 8cyl; Auto transmission

It seems that I am annually having to replace the “map sensor” and various parts associated with that. Last week I replaced it again, and next will be the “auto throttle body” or something with the ...
8
votes
2answers
2k views

Gas pedal stops responding after driving for some time

My daughter has a 2005 Jeep Liberty Sport. She drives it to school daily and then home after school with no problems. But, if she uses it to run around town on errands it starts but the gas pedal won'...
2
votes
1answer
97 views

1997 Pontiac Sunfire not accelerating past 40mph

Problem Details: My 1997 Pontiac Sunfire will turn on but I need to leave it cranking for a bit and give it a little gas, it can run, but when I try to accelerate past 40mph, the revolutions drop ...
1
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0answers
625 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. ...
1
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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 ...
1
vote
2answers
561 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 ...
2
votes
1answer
1k views

Repairing of electronic throttle control

I am the owner of an Opel Astra G Caravan (This is the European name, don't know how it is in USA) from year 2007. It has an 1.4 Twinport engine Z14XEP and a manual gear. A few days ago I noticed ...
0
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5answers
439 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 ...
8
votes
2answers
2k views

ITBs with a charged engine

Are there any benefits of running independent throttle bodies with a super/turbocharged engine, as opposed to running a single throttle body on the same engine? If so, what are the benefits (and how ...
1
vote
2answers
408 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 ...
2
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1answer
97 views

Unknown Capacitor required

I have an automotive electrical issue I am having trouble with, the injection ECU is reacting to the throttle position sensor too quickly and shutting the fuel off on a trailing throttle too early ...
0
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0answers
65 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 ...
0
votes
1answer
265 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 ...
1
vote
0answers
68 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 ...
1
vote
1answer
390 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 ...
4
votes
1answer
196 views

Replaced throttle body - now horn won't stop honking

This is the final question to my DIY ford ranger repair series. You can see the first two here: 1) Is hot desert weather the source of my recurring car problem 2) Procedure for throttle body and idle ...
4
votes
2answers
1k views

How can I rev a “drive by wire” car from under the hood?

I've got a 2013 Hyundai Accent with a noise coming from somewhere under the hood. Happens only at a fairly narrow band of engine speed (1100-1200 RPM). I've been trying to hunt around for the source, ...
1
vote
0answers
400 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 ...
4
votes
1answer
939 views

2002 Yamaha YZF R1- Fault code 15

I have fault code 15 on my display. Checked the TPS, it has the right resistance on all cables combinations. Also correct voltage on yellow - black when its attached to wire harness and the ignition ...
0
votes
2answers
397 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 ...
2
votes
0answers
104 views

I have Vespa sxl 150 scooter.It behaves strange while giving aceleration

It may sound funny but i found this after several days. While moving towards west the scooter works well and easily reaches 100 km/hr. But when moving towards east the scooter never go above 85 ...
2
votes
0answers
447 views

1996 Mazda Soho 1.3 - Idle throttle control valve acting up

I bought a Mazda Soho 121 roughly a year ago, that had an idling problem. After tracing the issue down to the idle control valve (idle would jump from 500rpm to 3500 rpm every second or two), I ...
3
votes
1answer
669 views

P2104 Throttle Actuator Control System Forced Idle error, but car runs fine

2 days ago, I had to jump start my 2009 Chevrolet Aveo. I suspect I left the interior light on all night which drained the battery. After I started the car, the engine warning indicator was on. (It ...