Questions tagged [air-intake]

The point at which air enters the intake tract of a motor vehicle or stationary engine

Filter by
Sorted by
Tagged with
0
votes
0answers
44 views

Can I remove my air box and maintain engine characteristics?

I have recently purchased a Yamaha XSR900. I love pretty much everything about the bike, but I am planning a bunch of customizations to make it my own. Mostly cosmetic. Some not so much. One of the ...
1
vote
0answers
25 views

1.9 TDI Skoda Octavia estate with Multiple faults

I recently took my Skoda into the main Skoda garage to get some minor issues fixed, such as the cigarette lighter not working in the front for my satnav, a flashing orange coil light on the dash[for ...
0
votes
0answers
23 views

Cranking start from time to time on a VW Golf mk4

My VW Golf mk 4 has been cranking from time to time for the last 2 or 3 years, or perhaps a little bit more. It's not something that always happen and I believe that it's specially prone to do it when ...
1
vote
1answer
27 views

HHR - CEL giving codes P0171 and P0326

2010 HHR LT 2.2 has had funny idle with occasional stalling. Had oil changed last Sunday and noticed the air intake hose connecting fender to filter box was unraveling so my Daddy took it off and i ...
24
votes
7answers
7k views

How do cars drive through deep water as shown on many videos online?

I have read many warnings about driving a car through deep water. Some problems that this can cause is destroy the catalytic converter and in petrol engines water can cause damage to spark plugs. And ...
3
votes
1answer
294 views

How to repair this (PCV?) tube?

First, is this a PCV (positive crankcase ventilation) valve tube on the 2002 Chevrolet Impala? It is hard, non-flexible plastic with hard rubbery grommet-like inserts on the ends, with one side ...
0
votes
1answer
51 views

How to know to what extent, if any, an engine has been damaged by dirt?

Today I realised that my engine air filter had been improperly installed. One of the clips of the covering was not closed properly. I think its because I didn’t unscrew the intake pipe while ...
2
votes
0answers
36 views

What is this connection on the air intake right before the turbo?

This is the engine bay of a Citroën C5. I would like to know what the connection indicated by the red square is for. I removed the air duct once to check the EGR valve and there was a little oil ...
0
votes
0answers
37 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 ...
0
votes
2answers
47 views

1986 Dodge B van, 5.2L, heated air intake, replace, leave, or remove?

There is an ugly part in my old Dodge b250 campervan somebody has helpfully held in place with an coathanger. It consists of a duct (with torn sections) from the manifold up to the intake of the air ...
1
vote
1answer
51 views

2006 Honda Civic hybrid low idle

I changed my air intake and everything seems fine except I noticed my idle is below zero rpm now the car feels fine. Is the car not use to the normal amount of air it's getting now? It seems to be ...
2
votes
1answer
296 views

Difference between banks for AFR & O2 sensor values

This is a well maintained 2007 Subaru with 140k km on the 3.0 litre six cylinder EZ30R engine. She's running a little scratchy most noticeable when cruising although no codes or anything. I decided ...
3
votes
1answer
102 views

Could broken air filter seal/gasket impair intake?

I am getting a P0101: Mass or Air flow Circuit and noticed that my air filter gasket is getting dangly in places, which might be causing it not to seal well. Could that be causing impaired air intake, ...
1
vote
1answer
72 views

P0022 after fixing P0348, camshaft related

Vehicle: Toyota Tacoma 2006 V6, 155K mi Problem: I had OBDII Code P0348: Camshaft Position Sensor A and fixed it by replacing the broken camshaft position sensor. However, the check engine light didn'...
1
vote
1answer
24 views

Where is air inlet to draw air when AC is in re-circulation mode?

When we put the AC in re-circulation mode. It is supposed to draw the air from cabin, send it to AC for cooling and then throw it out of Vents. But where is in air-intake in this mode to draw air from ...
1
vote
0answers
45 views

Could a vacuum leak cause a drop in manifold absolute pressure?

I've been doing some reading and speaking to a mechanic trying to diagnose a hesitation and rough idling issue. I think I've ruled out a vacuum leak by spraying flammable gas around the seals and not ...
0
votes
1answer
54 views

Mass Flow Sensor missing

I've recently purchased a Volvo V70 I 2.4 (106kW, 1998, manual) and wanted to check the mass flow sensor for issues. But it appears that my car has none, even though I've seen them in all pictures and ...
1
vote
2answers
1k views

Calculating fuel flow rate through obd || sensor not supporting 015E and 0110 commands

I have been working on a project where i want to calulate fuel flow rate using data from the obd2 sensor. The car on which i was testing didn't support the pid 015E which is for fuel flow rate. Then i ...
0
votes
0answers
74 views

Diesel intake heater DIY

I am the owner of an older 3.0 liter diesel car and winter mornings are quite painful for both me and the car. Even though thermostat is fine, heating takes forever. I know diesel only heats up while ...
2
votes
1answer
166 views

How does Ken Block's Hoonicorn V2 filter air from the turbos?

Ken Block's 1965 Ford Mustang dubbed the "Hoonicorn V2" features a pair of turbos that stick out of the hood. If you look at the picture of the engine bay there appears to be no air filtering ...
2
votes
3answers
748 views

Would restricting air intake reduce fuel consumption?

I own a Yamaha YS125 which is fuel-injected, and a lot of times I am flogging the bike on full throttle, which increases fuel consumption. I was thinking of restricting the air flow intake of the ...
2
votes
1answer
48 views

Does the air intake system in a VW CC 2010 go around the engine?

I am trying to visualize what the air intake system in my car looks like. It's a turbocharged 2.0L VW engine. As I understand it, the air intake is on the front right near the radiator and headlight....
3
votes
1answer
45 views

Focus 2003 1.8 TDCI starts, but struggles to start in the morning

I have a question, well two. Basically I have bought 2003 Focus TDCI but it is struggling to start in the morning? It's not exactly cold, so I don't understand why it would struggle. It has been about ...
1
vote
0answers
193 views

Driving through a puddle

I have already asked a question on this board but I have another question. Sorry I am not good with cars so I don't know the lingo.I have a 2017 Chevy cruze. I drove through a deep puddle at about 40 ...
0
votes
1answer
73 views

High rpm on neutral but flatting the gas pedal on D doesn't increase the rpm

I am making this question as an update to my previous question . I am not sure if updating that question will draw attention to it or keep it buried in the sea of questions here, if it gets updated ...
0
votes
1answer
478 views

Can removing temporarily disconnecting filter damage car or not?

I bought a civic vti and when running the car the vtec didnt sound as loud as the test drive. the seller told me that was because he removed the 'whales penis' modification which I had agreed to. He ...
0
votes
3answers
68 views

Why wont my Toyota dual cab 2004 3.0lt turbo diesel wont go over 100km/hour

I have just bought a new Hilux, its had work done too it aswell as been RWC approved and registered. But i notice yesterday coming back home that it was struggling to get up to 100 or over. I am ...
1
vote
1answer
194 views

Audi TT Turbo and Dump Valve Issue

I've picked up a 1.8 TT Turbo Quattro which has been fitted with a K&N filter and dump valve by the previous owner. My (basic) understanding of how this works is that it should release the air ...
2
votes
1answer
110 views

What are the possible causes for the car to increase power by itself?

I have a 1993 Fiat Panda 1.0 i.e. (gasoline) with single injector. Last year it started to present a very specific issue: from time to time (but basically now it happens every time I drive the car) it ...
1
vote
2answers
3k views

Would it make sense to put a cold air intake in the 'stock' air filter box?

I have an Audi A6 C6 4F2 - 2.4L V6 and I'm wondering if I should put in a cold air intake. As seen on the picture right here (left side), there isn't much space.. I was thinking to put the ...
4
votes
4answers
2k views

Does cooler air improve turbo performance?

When modifying NA cars I've always been advised to try and protect the intake from heat soak from the engine bay because the engine performs better with cooler air. This makes sense. I now have a ...
2
votes
1answer
2k views

2010 Nissan Sentra - Idling rough in reverse, occasionally stalls when stopping

Been having an issue with my 2010 Sentra where the idle in reverse is very rough and has very little power. As well when making abrupt stops in drive the car will occasionally stall, but start back ...
2
votes
1answer
83 views

Seafoam Spray in 2008 Accent

Good day, My GLS Accent has a 1.6 MPI automatic engine that I bought new in 2008 has about 150,000 Kilometers on it. With basic service (not from dealers), petro 91 octane fuel and synthetic amsoil ...
2
votes
1answer
549 views

What to use to seal airbox gaps

Bike is a 2006 ZX-10R. I've taken out the screws in the air box to split it into two halves for cleaning (not just taking the lid off). Putting it back together, I'm noticing some gaps that were ...
-1
votes
1answer
141 views

Precautions before changing air filter [closed]

I am using Chevrolet Sail-Uva Diesel 2013 model(India). I am about to change my air filter. Is there any cleaning process before changing air filter in cars? Anybody have great tips can improve this ...
3
votes
5answers
18k views

What do hood scoops do to prevent water being ingested in to the air intake system?

I'm planning a modification to my 1998 Toyota Corolla, replacing the stock air intake with something along the lines of forced air induction via a cone air filter. Air will be drawn in to the car with ...
2
votes
1answer
130 views

IAT reporting below zero temp on MB w168

I have a first version MB w168. This car has the MAFs/IATs soldered to the ECU. You can't replace those without replacing the whole ECU. Anyway I have an obd scanner which works with this car and I ...
6
votes
1answer
1k views

Help me diagnose the cause of this intake valve burn

I would like some help diagnosing the probably cause of this intake valve burn as seen in the picture. 167fmm engine. 229cc OHV push rod type. Now here is the rub. this is engine originally 9:1 CR, ...
3
votes
3answers
2k views

Could taking coolant through the intake filter realistically cause permanent inability to start?

Diagnosing failure to start on a 2001 Honda Prelude SH, still in brainstorming phase. Leaving out list of other thoughts because this question is specifically about this possibility, rather than ...
5
votes
1answer
574 views

What would happen if i took the throttle plate off my 5.3L V8 engine?

The throttle body helps regulate air right? Can't it also restrict air as well. For example put your hand over your mouth and try to breath in. If I took it off wouldn't I be able to get more air in ...
4
votes
1answer
1k views

Effect of smoke ingestion on fuel injected car engine?

My father asks, can smoke in the air from wild fires cause a fuel injected engine to choke? (He seems to think this was once true for carbureted engines - was it?) My personal guess is that we can ...
5
votes
1answer
1k views

Planning to fit an oil catch can into my car. Any problems with this setup?

I own a 2007 Ford Fiesta ST150, I have modified it a little, one of the mods is a cold air intake. I want to install an oil catch can setup, but as the PCV vent is behind the intake manifold and ...
3
votes
2answers
110 views

2012 Mitsubishi Galant SE

So I have a 2012 Mitsubishi Galant 2.4l and I'm looking for a cold air intake system but there isn't one for my car. I've been looking at a lot of websites but there's nothing. I searched and I found ...
1
vote
0answers
862 views

Calculate Intake Manifold Absolute Pressure from MAF Engine using OBD Data

I need to calculate Intake Manifold Absolute Pressure from OBD Data. I have Toyota Corolla GLI 2010 Model. This car has MAF engine which does not return Intake Manifold Absolute Pressure. Where'as I ...
7
votes
2answers
241 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. ...
7
votes
1answer
630 views

What does a wet intake port (direct injection) mean?

Car: Audi S5 4.2L V8 FSI I have my intake manifold out to clean carbon of the intake ports. When I was removing the port separators, I noticed some were really dry (light grey carbon), others were ...
6
votes
1answer
896 views

Is this a right MAF signal?

I've just bought this MAF sensor for the injection setup I'm going to build, and first I was struggling to figure out how to connect it. It's used for several BMW cars.(E38,E39,Z3) On the connector it ...
2
votes
1answer
74 views

10/89 (1990) Subaru Legacy EJ22 - OBDI Code 45

10/89 Subaru Legacy EJ22. NA. Multiport Fuel Injection. Throwing... Code 45: Pressure duty solenoid (turbo)/atmospheric pressure sensor circuit (non-turbo) Where is this thing located? I ...
8
votes
2answers
3k 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 ...
8
votes
1answer
1k views

What is this U shaped tube sticking off the intake hose?

On the intake hose for a 2001 Honda Prelude SH there is this U shaped tube with one closed end (sorry about blurry shot): (The tiny thing sticking up on the top left isn't a tube it's just a solid ...