Question about 1993 Toyota Camry V6

1 Answer

No power to the fuel pump, changed relays and ecm

Posted by on

  • Squishy86 May 11, 2010

    have you checked power to and from the fuel pump itself with a 12v tester?

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 24 Answers

Well your alternator gives power to your fuel pump so u should replace your fuel pump...hope i solved your problem :)

Posted on Jul 31, 2009

  • rideout99 Jul 31, 2009

    well your alternator gives power to your fuel pump so u should replace your fuel pump...hope i solved your problem :)

  • rideout99 Jul 31, 2009

    well your alternator gives power to your fuel pump so u should replace your fuel pump...hope i solved your problem :)

×

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
  • 2 Answers

SOURCE: 96 gand cherokee

Sounds like a body control module --in most newer cars there is a ecm for the elctronics for the motor and a bcm for all the interior dudadds --Check EVERY fuse in the truck and out under the hood -- look up the wire color codes for the ecm harness --check the power wire going to the ecm for 12v --or jump a wire off the batt + to that wire to feed it.try to locate all the grounds also--if need be google it --Like my ls1 trans am has a ton of ground wires --but there are 2 on the back of the head--if they are loose it will not run even tho all the other grounds under the hood are tight.I think they do that to isolate the ecm from ground back feeds or cross wireing when jump starting.

Posted on Jul 30, 2008

  • 979 Answers

SOURCE: 1996 CADILLAC DEVILLE, NO POWER TO FUEL PUMP

Check for a burned fusible link under the hood. If you have power at the fuel pump relay, you could have a bad ignition switch or bad oil pressure switch...accordianman

Posted on Dec 15, 2008

  • 1 Answer

SOURCE: My 1994 suburban engine stops. No fuel, no MIL light.

I checked all of the fuseable links and they were all good. Next I decided to check all the power wires to the ECM and also the grounds from a wiring diagram because the Mil is controlled by the ecm and the bulb was good. The ecm is located behind the glove box. Bingo, the orange wire was only reading 3-5 volts at the ECM, but 12.5 volts after the fuseable link at the underhood fuse block (passenger side firewall). I ran a temp wire directly from after the fuseable link to the orange wire at the ecm and the ecm turned back on and the Mil or "check engine soon" light came on too. The truck started up and has never run smoother.

Note that at first the truck just stalled out and I could restart it right away with no error codes. Eventually the stalling became more frequent with longer reset times required. Once it threw a "code 54" and I thought it was fuel related as each time the gas stopped and I could still start the truck with gas poured into the TB. Ignition ok. My fuel pump turned on and ran if I tested it. I even checked the pressure regulator and the fuel filter to no avail.The orange wire that powers up the ecm is technically part or the fuel pump relay circuit as it also feeds the fuel pump relay 12.5 volts all the time. The thin orange wire from the fuse block is joined to two other thin orange wires in the large group of wires that heads to the ecm along the firewall behind the engine. I had to dig it out of the many wires to find it and remove a lot of tape. It is amazing to me that this one little orange wire could cause so much grief and be so hard to track down. I could not have afforded to take this problem to the Dealer.

Posted on Mar 26, 2009

  • 1 Answer

SOURCE: no power to fuel pump

I had a problem with my 92 accord not starting. Had gas and was turning over but not starting. The problem I had only occurred when it was hot outside (95+degrees). I had it looked at by a friend and he said it was the fuel pump. Putting our own fuel mix into the engine directly started the car sothere was nothing wrong with the engine.

Turns out that there is a relay in the dash of the car that turns on the fuel pump. When it goes bad the pump fails to kick in. In my case it was getting bad the hot weather pushed it over the edge.

Once identified it cost about $30 and about 1/2 hour to replace.

Posted on Sep 16, 2009

  • 173 Answers

SOURCE: 1992 Buick Roadmaster no power to fuel pump. New

Theres a few more checks But i'm sure you checked the fuel pump fuse already ..Use a test light and check to see if the fuel pump relay is getting power from the supply and from the Ignition feed. should be a schematic on the underside of the relay..if no power from the feeds check for a blown or rotted fuseable link or a maxi fuse..good luck

Posted on Jan 27, 2010

Testimonial: "Thanks alot will try this on Thursday. You have educated me on these items again thanks a lot for pointing me in a new direction.Will let you know "

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

95 jeep wrangler extended crank time.


This system requires rpm signal before it will power up fuel pump .
THE PCM POWERS UP THE FUEL PUMP FOR TWO OR THREE SECONDS AT KEY ON !

Oct 06, 2016 | Jeep Cars & Trucks

1 Answer

Foul pump problem no power.


Check to see if you have a fuel pressure sensor in the fuel manifold . It is there to stop the pump working when the pressure in the manifold is held constant . IT sends to the ECM which in turn activates the pump relay and turns the pump on.

Mar 18, 2014 | 2003 GMC Envoy

2 Answers

After bypassing the fuel pump relay, the ECM and IGN have no power. Car will not run. What is the cause?


diagnostic connector gets it power from the cig. lighter fuse change fuse and then you should have power at the connector check the ecm fuse also

Dec 02, 2013 | 1994 Toyota Camry

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

I need a gmc safari diagram for fuel pump 1991


I don't usually do diagrams due to copyright laws.
From the fuel pump you have a gray wire and a black wire.
The black is ground and the gray is power from both the pump relay and the oil pressure switch.
The oil pressure switch provides power to the pump once the engine starts.
At the relay, you have a green and white wire that provides power from the ECM with the key switch on. You have an orange wire that provides power from a 15amp fuse.
The gray wire going to the pump, and a black and white wire for ground for the relay.
The ECM provides power for 3 seconds when the key switch is turned on to boost line pressure for startup.

Jan 30, 2013 | 1997 GMC Safari

2 Answers

2004 nissan armada want start like out of fuel


Check you fuel pump relay. located on IPDM marked as ECM relay in the picture. Just change places of ECM RELAY and FOG LAMP relay and try to start. If it starts change the ECM relay. good luck
2004-nissan-armada-want-start-like-out-gl0xs2s0pqcfqvyesya4nbi0-3-0.jpg

Jul 07, 2012 | 2004 Nissan Armada

3 Answers

Lost power to fuel pump


the oil pressure sensor has a 3rd wire which feeds to the fuel pump .. If you turn the ignition key on and do not hear the fuel pump running for 5 seconds, replace that oil pressure sensor. That sensor does turn the fuel pump circuit off once oil pressure is acheive and the the computer switches the fuel pum relay on to take over running the fuel pump

May 04, 2012 | 1999 Buick LeSabre

1 Answer

Chevy Silverado 2002 2500 shows trouble code, P0230, and P0300


P0230 - Fuel Pump Primary Circuit Malfunction Symptoms - Engine Light ON (or Service Engine Soon Warning Light) Possible causes - Blown Fuel Pump fuse
- Open Fuel Pump Monitor Circuit
- Faulty Fuel Pump Relay
- Damaged ECM. P0230 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.
Please go to this LINK for P0300 diagnosis.

Feb 16, 2012 | Cars & Trucks

2 Answers

1993 rodeo not running no power to fuel pump


if there is no power to the fuel pump check relays and fuses....UNDERHOOD FUSE & RELAY PANEL IDENTIFICATION Fig. 2: Underhood Fuse & Relay Panel Identification Courtesy of ISUZU MOTOR CO. Fusible Link Identification ? A - 80 Amp (1991-92 3.1L) ? A - 60 Amp Main-1 ? B - 30 Amp Main-2 ? C - 30 Amp (1993-94) ECM (3.2L) ? D - 30 Amp Condenser Fan (A/T Models) Relay Identification ? 1 - Headlight Relay ? 2 - A/C - Heater Relay ? 3 - Starter Relay ? 4 - A/C Compressor Relay ? 5 - Charge Relay ? 6 - Fuel Pump Relay ? 7 - ECM Relay ? 8 - Wiper Relay Fuse & Circuit Breaker Identification ? 1 - 15 Amp (1991) ECM, Fuel Injection System ? 1 - 15 Amp (1992-94 2.6L) ECM, Fuel Injection System ? 1 - 10 Amp (1992-94 3.1 & 3.2L) Heated Oxygen Sensor, Fuel Injection System ? 2 - 20 Amp (1991-92) Fuel Pump ? 2 - 20 Amp (1993-94 2.6L) Fuel Pump ? 2 - 15 Amp (1993-94 3.2L) Fuel Pump ? 3 - 10 Amp (1991) ? 3 - 15 Amp (1992-94) Turn Signal Lights, Hazard Warning Flasher Lights ? 4 - 10 Amp Horn, Door Locks ? 5 - Not Used (1991 3.1L) ? 5 - 10 Amp Charging System, Charge Warning Light WARNING: Always disconnect battery ground cable before servicing "high- current fuses. It is recommended that "high-current" fuses be replaced by a qualified technician. Page 1 of 2 FUSES & CIRCUIT BREAKERS -1994 Isuzu Rodeo LS? 6 - Not Used (1991) (1992-93 2.6L) ? 6 - 10 Amp (1992-94 3.1L & 3.2L) A/T Interlock System ? 6 - 10 Amp (1994 2.6L) Heated Oxygen Sensor, Fuel Injection System ? 7 - 20 Amp Heater/Air Conditioning Blower Controls ? 8 - 10 Amp Air Conditioner Compressor Controls ? 9 - 10 Amp Right Headlight ? 10 - 10 Amp Left Headlight © 2008 Mitchell Repair Information Co., LLC.
62217_isuzfuse_1.jpg
Underhood fuse block swap out relay #7 thats the ECM relay.
Ground Circuits Using a DVOM, touch negative voltmeter lead to a good ground. Touch positive voltmeter lead to each ground terminal. With vehicle running, voltmeter should indicate less than one volt. If reading is greater than one volt, check for open, corrosion and loose connection on ground lead. See ECM GROUND LOCATION table for ECM ground location.
Page 1 of 1 SYSTEM/COMPONENT TESTS - 2.6L EFI -1994 Isuzu Rodeo

Mar 28, 2010 | 1993 Isuzu Rodeo

1 Answer

1991 pontiac 2.5 tech 4 fuel pump relay wont energize


Look for a bad fuse or relay. If both check out, most likely an ECM problem

Mar 07, 2009 | 1991 Pontiac Grand Am

Not finding what you are looking for?
1993 Toyota Camry V6 Logo

142 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

8575 Answers

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

Answer questions

Manuals & User Guides

Loading...