Question about 2002 Toyota Corolla

1 Answer

THERE ARE NO CODES IN SYSTEM FUEL PUMP ENERGIZES WITH EVERY KEY CYCLE

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Welcome Back:

    Visited the website for 2 consecutive days.

  • Expert
  • 60 Answers

If the pump 'energizes' for a short burst, it maybe going through a norml proming cycle before the key is moved to the start position, need more info, i.e. how long before 'every key cycle'

Posted on Nov 10, 2010

  • kimbrellserv Nov 11, 2010

    the car will not crank on first try after being driven and then left to set for for a few minutes there are no codes in system went to fuel pump connector under back seat fuel pump energizes with every key cycle

×

Ad

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

84 Chevy cleberty after it sits for a day it will not crank unless I put some gas in the Tb thin it cranks and runs fine it has fire and fuel injector is spraying


Check valve inside fuel pump is bad , need new fuel pump . The check valve is suppose to keep pressure in fuel lines . Try turning the ignition on - off a few times ,to build up pressure . The PCM/ECM engine computer energizes the fuel pump relay for two seconds when key is turned on to prime the fuel system .

Oct 05, 2017 | Cars & Trucks

2 Answers

Which relay goes to the fuel pump on a 99 Buick LeSabre


Appears to be passenger side under the dash, #2 in the picture.
26303049-f0heuq3vs4b5ylctzh4kox0z-4-0.jpg

Oct 06, 2016 | Buick Cars & Trucks

1 Answer

98 oldsmobile silhouette overheated turned off then i kept trying to turn it on over and over again while stepping on gas many times!


Your vehicle is fuel injected , stepping on the gas pedal does nothing . Unless you push it to the floor an hold it there ! That is WOT - wide open throttle cut off ! Keeps fuel injectors for squirting fuel ! The light's on the dash have a three second prove out ,lets you know the systems associated with each light is working ! Doesn't sound like you know a lot about cars . Your best bet would be to take your vehicle to a qualified repair shop . The fuel pump is controlled by the PCM - engine computer , when you first turn the key on the PCM energizes the fuel pump relay for two seconds ,priming the fuel lines ! If there were not input from crankshaft position sensor to the PCM, the PCM will not energizes the fuel pump relay at all .

Aug 19, 2016 | Oldsmobile Cars & Trucks

1 Answer

Hard to start from hot or cold, imobaliser fitted. Once started runs fine, but takes 5 mins+ and backfires


You should have the fuel system tested , fuel pump pressure an flow test . an static fuel pressure . There is a check valve in the fuel line inside the fuel pump module , this could be bad . You could try just turning the key to run, not start 4 or 5 times to see if this adverts this problem . This will build fuel pressure up , you see when you turn the key on the PCM/ECM -engine computer energizes the fuel pump for two seconds building fuel pressure .

Jan 17, 2016 | Cars & Trucks

1 Answer

Were can I find the fuel pump kill switch


When you first turn the key to start the vehicle the PCM - engine computer energizes the fuel pump relay turning on the fuel pump for two seconds to prim the system . The fuel pump won't be turned on again till the PCM receives a crankshaft position sensor signal. If you hear it come on the inertia fuel cut off switch is OK . Now then what problem are you having Lisa ? A no start condition ? Is there spark getting to the spark plugs ? Do you have a red light on the dash flashing when trying to start the truck ? Anti-theft system problem .

Dec 01, 2015 | 1999 Ford Expedition

1 Answer

Fuel pump relay secondary circuit - high voltage


Here is the definition for the code.
Test procedures are a little different depending on the make and model.

P0232 Description The Engine Control Module (ECM) provides ignition positive voltage to the coil side of the fuel pump relay. When the ignition switch is first turned ON, the ECM energizes the fuel pump relay, which applies power to the fuel pump. The ECM enables the fuel pump relay as long as the engine is cranking or running, and crankshaft reference pulses are received. If no crankshaft reference pulses are received, the ECM de-energizes the fuel pump relay after 2 seconds. The ECM monitors the voltage on the fuel pump relay control circuit.

Read more: http://engine-codes.com/p0232.html#ixzz2KX7eZdtR

Feb 10, 2013 | Cars & Trucks

1 Answer

How to test your fuel pump on a 1994 GMC safari. Listening more often than not will not determine if the fuel pump is working, some are just too quiet even when inserting a hose in your tank and putting...


You hook up a fuel pressure gauge . No pressure does not mean the fuel pump is bad , could be a electrical problem . Fuel pump relay , A bad crankshaft postion sensor , if the PCM doesn't see an input from the crank sensor it will not energize the fuel pump relay . And Turning on the key to run for 2 seconds will energizes the fuel pump relay to prime the fuel system . An It will prime the system just that quick . Knowing how it works is key to fixing the problem . Testing at the relay . Fuel pump electrical circuit diagnosis no fuel pressure testing GM

Mar 14, 2017 | 1994 GMC Safari

1 Answer

1996 olds 88 3.8 engine starts up runs about 15 minutes then shut down.Wait a while and will do same cycle over. I replace fuel pump, filter tank clean. No codes, engine runs find until it stops getting...


There is a fuel pump prime cycle (2 or 3 seconds)when you turn the key to on and once you start the engine the fuel pump power comes though the oil pressure switch.No oil pressure,no power to the pump.maybe your oil pressure switch has become weak?I would use a scan tool and command the fuel pump on when it does shut off,just to make sure the pump can run,as it could be a bad pump too.Also when it does quit,if you turn the key off for 10 seconds, you should get a prime cycle by turning the key to on.Have someone listen at the gas tank for a fuel pump noise,which will be only 2 or 3 seconds,but will do as a pump running check.Next would be to check for power at the back at or near the fuel pump,power and no pump.replace pump.No power to pump,follow power back to the front through oil pressure switch and fuel pump relay etc.You can always add your own power to the pump from a power source the switches off with the key if needed bypassing the existing wiring and oil pressure switch.

Mar 15, 2017 | 1996 Oldsmobile 88

1 Answer

1999 chevrolet malibu


The fuel pump relay only energizes for 2 seconds when you turn the key on. It re-energizes once the pcm detects engine rpm. What you are seeing may be the normal operation of the system.

If the vehicle still won't start or the fuel pump dosen't run you will have to trace the wiring from the relay to the pump and check your grounds.

Aug 11, 2008 | 1999 Chevrolet Malibu

Not finding what you are looking for?
2002 Toyota Corolla Logo

Related Topics:

46 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8557 Answers

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

Answer questions

Manuals & User Guides

Loading...