Question about Cars & Trucks

1 Answer

Car hesitation After convert from 1.5 to 1.8,same ecu,injectorand air flow sensor.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Cars & Trucks Master
  • 76,070 Answers

You need the ECU from the 1.8, it is to lean on fuel for the larger engine is my guess.

Posted on Nov 09, 2012

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 548 Answers

SOURCE: 95 volvo 940 DL hesitates injector error codes 113, 212, 232

Check the fuse to the injector. If it is out or got wet, it could mimic these conditions. let me know what happens. I have an 85 model.

Posted on Jan 15, 2009

  • 147 Answers

SOURCE: Repalced O2 sensors, mass air flow sensor, and plugs error messag

dpfe velve

small emissions valve with one electrical connnector and three to four vacume lines located near your egr valve. this is a comon fault on fords emmissions system.

Posted on Aug 15, 2009

  • 1 Answer

SOURCE: I have a 2000 Taurus SES. Check engine light came

sounds like a maf issue was it new?171/4 is usually uim vac leak

Posted on Oct 02, 2009

  • 64 Answers

SOURCE: can the mass air fow sensor cause hesitation when accelarating?

Yes it could be bad sometimes cleaning it works and sometimes it doesn't. You should wait for the light to come back on and get the code before you buy a MAF sensor as it is expensive. You need to replace your air filter because that is likely that the fibers came off of it. You need to use a high quality stock replacement air filter.

Posted on Oct 29, 2009

mlapres
  • 757 Answers

SOURCE: mass air flow sensor

The mass airflow sensor is very important...it uses tiny diodes mounted in the flow path of the incoming air to the throttle body in units called CFM. It sends that information to the engine computer and the program calculates the proper amount of fuel needed to mix with the volume of air coming in. It is vital to your car that this sensor is properly maintained. If it's diodes are allowed to get dirty such as by having a dirty air filter, then the readings it takes will be inaccurate and the cars' performance will suffer. If the diodes break, you will not be able to drive the car and a new sensor is expensive.
DO NOT buy into snake-oil products like MAF cleaner...it is an expensive gimmick plus spraying anything under pressure into the sensor can break the diode filaments, some of them are barely .010" thick. Just remove the sensor with the proper bit and carefully poor a stream of isopropyl alcohol (isohol, rubbing alcohol) over the diodes until they shine. Then rinse with water and let air dry.


Posted on Dec 15, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Idling rough and hesitating when accelerating


This sounds like the mass airflow sensor.

Jan 21, 2014 | 2003 Suzuki Aerio

3 Answers

Hesitation when I step on the gas


The tps or throttle position sensor could be getting flaky, but without a code I don't know if this is the case.

The map sensor if equipped could be giving false manifold readings.

The mass air flow sensor could be bad if so equipped.

I'd be guessing without more data.

Jul 06, 2010 | 1995 Chevrolet Cavalier

1 Answer

My 2005 Sante Fe hesitates and won't get up to speed whenever it is damp or rainy outside. What causes this? Thanks


It could be your MAF (Mass Air Flow) sensor. Do you have any SEL {Service Engine) light coming on?

A mass air flow sensor is used to find out the mass of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density as it expands and contracts with temperature and pressure. In automotive applications, air density varies with the ambient temperature, altitude and use of a turbocharger and this is an ideal application for a mass sensor. (See stoichiometry and ideal gas law.)
There are two common types of mass airflow sensors in usage on automotive engines. These are the vane meter and the hot wire. Neither design employs technology that measures air mass directly. However, with an additional sensor or two, the engine's air mass flow rate can be accurately determined.
Both approaches are used almost exclusively on electronic fuel injection (EFI) engines. Both sensor designs output a 0.0- 5.0 volt or a pulse-width modulation (PWM) signal that is proportional to the air mass flow rate, and both sensors have an intake air temperature (IAT) sensor incorporated into their housings.
When a MAF is used in conjunction with an oxygen sensor, the engine's air/fuel ratio can be controlled very accurately. The MAF sensor provides the open-loop predicted air flow information (the measured air flow) to the ECU, and the oxygen sensor provides closed-loop feedback in order to make minor corrections to the predicted air mass.

May 27, 2010 | 2006 Hyundai Santa Fe

1 Answer

Hesitation upon acceleration


Hello/ Yes it can, but it is not the only possible cause. There could be an air/fuel mixture problem. This may be caused by one of the following: Oxygen Sensor, Coolant Temperature Sensor, Manifold Absolute Pressure (MAP), Mass Air Flow (MAF)Sensors, or the Fuel Pressure Regulator. I think that you need to get the codes from the ECU/PCM. These can be obtained from AutoZone, Advanced Auto, Pep Boys etc. free of charge. If there are no codes, you'll need to go to a reputable service center and ask for a diagnostic. They will generally deduct the amount for the diagnostic from any work preformed

Apr 26, 2010 | 2000 Dodge Grand Caravan

1 Answer

I have a p1155 error code on a 2002 toyota highlander. what should i do?


P1155: Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) The sensor is on the Bank 1 throttle body with electrical connection. Its a delicate sensor. Unscrew it from the throttle body and check if its dirty, spray it with electronic cleaner with care. If its damaged, just replace it. If its not rectified, the car computer may default the air temperature to 20 degC and the air flow will not be correct and may have the following effect: 1. You might have difficulty in winter startups 2. Loss fuel efficiency (air/fuel ratio is messed up)/NOx problems/failed emission test/prematured catalytic converter replacement etc. CLARIFICATION An Air Fuel Ratio Sensor is also known as Wide Range Oxygen Sensor. Bank 1 Sensor 1 is mounted in the exhaust header before the Catalytic Converter (CC). The ECU uses the signal from the AF sensor to adjust Air/Fuel ratio. On V6 and V8 engines there is a second AF Sensor in the other header. (Bank 2 Sensor 1). After the CC there is a narrow range O2 sensor called Bank 1 Sensor 2. It monitors the CC. If there are two CCs there is a second O2 sensor (Bank 2 Sensor 2) The AF Sensor draws about 3 amps so check connections. The heater is a resistor between the B+ and HT terminals of the plug. On V engines there is also a AF relay to check.

Feb 04, 2010 | 2006 Toyota Highlander

2 Answers

Impreza 2002 wrx spluttering and holding back when accelerating hard inbetween 4000 rpm and the red line any ideas


check coil, dist. and plugs; have the fuel pressure tested make sure you getting proper pressure from the fuel pump, check the fuel regulator make sure is not faulty. if all above check out, than have the air mass flow sensor check. air mass flow sensor measure the amount of air entering the intake and the computer calibrate the amount of air and how much fuel need to be injected from the injectors. faulty air mass flow sensor will throw ecu off from air and fuel mixture causing the ecu (computer) to starve the engine with fuel also causing it to sputter or hesitate when apply on gas pedal. if you have to replace any part check with ebay.

Oct 24, 2009 | 2002 Subaru Impreza

1 Answer

Location of sensors


IAT SENSOR IS MOUNTED INSIDE INTAKE AIR HOSE TO THE AIR CLEANER ASSEMBLY. THE MASS AIR FLOW SENSOR IS ALSO MOUNTED TO THE INTAKE AIR HOSE OF THE AIR CLEANER ASSEMBLY. O2 SENSORS LOCATION.YOU HAVE 2 # O2 SENSORS.YOU HAVE ONE THE EXHAUST MANIFOLD.THE OTHER SENSOR LOCATED DOWN AT THE CATALYTIC CONVERTER.

Aug 19, 2009 | Hyundai Accent Cars & Trucks

3 Answers

Check engine light on a 2001 Toyota Corolla


No need to replace the MAF. If it was bad, the check engine light would have come right back on as soon as you started the engine. The MAF not only measures the air going into the engine, but also measures the air temperature. Those 2 circuits are constantly sending info the the ECU. If either would fail, the ECU would light the check engine light. P0171 is a common code for incorrect readings (dirty) in the MAF. Cleaning it always helps, and cuts off the light. Your acceleration problem may be either a wrong Air-Fuel sensor (the one before the cat), or an "aftermarket" AF sensor. "Aftermarket" AF sensors have been shown to not work properly in Toyota vehicles. Hope this helps

Sep 27, 2008 | 2001 Toyota Corolla

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

12 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76070 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...