Question about 1992 Toyota MR2

1 Answer

Fuel pump relay

Fuel pump runs only when engine is cranked,no buzz when ig sw on

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

If it is starting that is normal if not take off your distrubitor cap and check for spark if no spark check the wire going to the coil pack for spark, if very little or no spark replace your dist. cap rotor and coil pack.

Posted on Oct 05, 2009

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

96 windstar eec wiring scematic


Find another relay with an identical part number(maybe the fuel pump relay)& swap it in place of the suspect EEC relay.See if the buzzing quits.If it does,the EEC relay is bad.There might be a ac WOT cutout relay or fan relay with an identical part number that you can use instead of the fuel pump relay.The fuel pump relay & EEC relay will both have to be in place in order for the engine to start.A relay should click when you turn the key on,but it shouldn't make a buzzing noise.BTW-the EEC relay is energized when you turn the key on and then it supplies ignition on power to the computer,injectors,solenoids and fuel pump relay.Therefore, if the EEC relay is defective, these components are Not going to work.If you don't hear the fuel pump prime when the key is first turned on,that's a sign the EEC relay is bad.One of the injector wires should have battery voltage, if the EEC relay is powering up.If your vehicle doesn't have a matching relay to the EEC relay(except for the fuel pump relay)just pull the FP relay out and slide it into place of the suspect EEC relay for testing purposes.If the buzzing noise stops,then replace the relay because there's no way to test if the car will start without having both relays in place.

Oct 11, 2015 | 1996 Ford Windstar

2 Answers

When i turn the key the engine cranks over but does not start, if i continue to crank it for a minute or two then it will eventually start and drive just fine. any ideas?


This sounds like a fuel system priming issue. When you first turn the key to the ON position (not cranking yet), you should hear a three-to-five second buzzing noise. This is the fuel pump running to pressurize the fuel system for cranking. This is controlled by the PCM and is relay activated. Once the vehicle starts and oil pressure rises, then the fuel pump is activated by the PCM via a different relay. If you can't start at first, what is probably happening is that the prime is not occurring and you have to crank it until the PCM sees oil pressure and then fires off the fuel pump. It could be PCM wiring or a bad fuel pump prime relay.

Oct 02, 2015 | Cars & Trucks

1 Answer

95 Taurus 3.8 SHO wont start replaced everything fuel pump to big relay is buzzing even new one im lost need help


Run tests. Fuel pressure correct? Spark at plugs when cranking? Fuel injector pulse working? Compression test?

Apr 06, 2015 | Cars & Trucks

1 Answer

Engine cranks but fuel pump does not activate


old post,
(pure software logic here) facts only this car. this g16 engine.
the pump only runs ,key on for 3seconds
the fuel pump relay does that'
cranking whole time pump runs, on all cars.
if not, FI OR IG COIL FUSE BLOWN
IF PINK WIRE GOES HOT AT PUMP , BAD PUMP
BUT.........................
IF 2 DOOR CAR, ?????
the left rear tail light g402 wire is rusty
type pump here'
and read
http://www.fixkick.com/

Feb 04, 2014 | 1992 Geo Tracker

1 Answer

Where is the fuel pump fuel located on a 1990 chevy geo tracker


old post. tracker day.
there IS NO dedicated fuel pump fuse. like 1991 to present
but uses the same fuse as ECU and SPARK
IG-COIL

http://www.fixkick.com/INJECTORS/89/89-90schem1.jpg

the orig book by suzuki (eek, GEOs) has an error
and is corrected only on this page.
in red.
btw the car does NOT run the pump key on, until 1991+.
so, you must crank it and check pump voltage !!!
same as 1996 J18 sport engine. (tricky rules no? and i know them)

that relay will break the bank, so learn to tests first.
and how. ask. can do. done many, of these.

Jan 31, 2014 | 1990 Geo Tracker

1 Answer

How can you tell if your fuel relay is bad


Most vehicles have a "system prime" that occurs when the ignition key is moved to the "ON" position. This is where the key ends up after you start the engine. This prime runs the fuel pump a second or two to get the fuel pressure high enough for the injectors to work once you crank the engine. The prime is performed by the fuel pump relay. In a quiet area (minimal noise, no radio), sit in the vehicle and turn the key to the on position without cranking the engine. You sgould hear a 3-5 second buzz or hum. This is the fuel pump coming up to pressure. If this is not occurring, then either the relay or the pump is most likely bad.

Nov 13, 2011 | 1997 Chevrolet Blazer

2 Answers

Fuel relay buzzing, no start


I'm having the same problem. What did it end up being?

Feb 14, 2010 | 2004 Pontiac Sunfire

2 Answers

2000 Chevy Trailblazer will not start when parked uphill. When it does run there are no problems when driving uphill. Engine turns over initially but immediately cuts out then just cranks with to no avail....


Solution was the Fuel Pump Relay. For this problem listen to the car as you turn the key forward just before cranking the engine. You SHOULD hear a buzz/hum that lasts for 2-3 seconds. This is the fuel pump relay priming. When the car was pointed uphill without a functioning relay there would be an air bubble in the line thus no turn over.

Nov 16, 2009 | 2000 Chevrolet Blazer

4 Answers

Fuel is not flowing to engine, changed fuel filter but still not running.


Did the engine just quit going down the road? or was it parked and then would not start? Did it have fuel before you replaced the filter? Did you check all the fuses in the fuse box. I think 2 of the fuses is marked ECM, check both Fuel pump relay? swap it with another relay in the fuse box. You should hear the pump come on for 2 seconds when you turn the key on, do you? If not as you are cranking the engine have someone rap on the bottom of the fuel tank with a mallet or block of wood, or hammer and see of the pump will run. If that gets it running, the pump is bad and will need replacement.

Nov 15, 2009 | 2003 Chevrolet Suburban 1500

1 Answer

Test for fuel cut off relay


Sam so right now you have crank no start,or no crank , no start. Not clear.
If its no crank no start.Your looking at battery, cables, ignition switch , starter relay.
If its crank no start, you know that B+ is making it to starter. Ok now listen for fuel pump to buzz or hum when you put key in ignition and turn to on position. No buzzing or humming fuel pump or relay.
make a set of jumper cables run them from battery to fuel pump, Does the pump run? If yes. The pump is good relay is not. If pump doesn't run then its the pump. Remember when you do this test you don't need the key in ignition Battery doesn't have to be connected, because your bypassing the control circuit.

Jan 24, 2009 | 1987 Honda Prelude

Not finding what you are looking for?
1992 Toyota MR2 Logo

Related Topics:

297 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides

Loading...