Question about 2002 Ford Explorer

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I replaced my fuel injectors but i'm not sure i may have crossed #2 and #3 injector wires do that matter if crossed

Do u have a pic of the injector wiring for 4.0 v6 thanks

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Yes it does matter but it should not do any damage if you fire it up just to see if it's right or not. If it runs rough shut it down right away , if it seems ok then you got it right. The firing order and enough pictures to help out are here: 2002 ford explorer fuel injectors Google Search

Posted on Nov 13, 2014

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YES it matters very much! It will not run right this way. The wire harness should be arranged so that the wires are each a different length, corresponding to the distance to each injector plug. Try a local autozone store or their website for the diagram.

Posted on Nov 13, 2014

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Yes it does

They will spray fuel into the wrong cylinder,
at the wrong time

Could Hydraulic the motor & damage it

Just an at home chat room

You have to use the internet for info
or buy factory service manuals

Should have marked the connectors with a
sharpe & made note of wire colors on the PCM
side

Why replace injectors?
They leaked
They failed a test
They quite
Your guessing at a misfire

Posted on Nov 13, 2014

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SOURCE: Have a 2003 Taurus, 3.0 engine that has a misfire

did you check the injector pulse on that cylinder and it also could be the pcm , i had a taurus and a sable with good coils stop firing 2 cylinders and it was the pcm ,the code it gave was secondary coil but changed the pcm and it worked fine

Posted on Aug 29, 2009

  • 32 Answers

SOURCE: 87 F150 wont start. New fuel pump, rail,

try changing the igniton module on the distribuitor in most cases it's the problem if you dont want to buy it you can take the ignition module to a autozone and they will check it for free

Posted on Sep 19, 2009

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SOURCE: 2001 Focus PO304 code. Nothings worked!

the code is normally the air feed from the turbo intercooler to the inlet manifold, leaking, or the wastegate on the turbo sticking

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SOURCE: My 2000 Ford Focus SE is throwing a P0302 code for

Ignition coil is most likely..clogged injector is uncommon but possible..fuel injector cleaner can only do so much..coil would be the thing to start with..

Posted on Sep 26, 2010

dttech
  • 4803 Answers

SOURCE: shorted out one of the fuel injector wires,and now

The fuel injectors receive their power from the Powertrain Control Module (PCM) Power Relay which is located in the Engine Compartment Fuse Box. This circuit is protected by Fuse "I" (20 Amp), also located in the Engine Compartment Fuse Box. If you blew a fuse, this would be the one.
The fuel pump, however, is a totally different circuit. (although it is controlled by the PCM which will not work if the fuse above is blown) The fuel pump gets its power from the fuel pump relay which is protected by Fuse "O" (20 Amp) in the Engine Compartment Relay Box.

Posted on Jan 30, 2011

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1 Answer

2004 isuzu rodeo 3.5l fuel injector removal instructions


no job stated, just 1 injector,? pull?
which bank or both, matters........
same as all fuel rail injectors.really....cept access.

1: do the fuel depressurize steps in the service manual.
2: battery neg lug off.
3: gain access to the rail. (obvious , sorry) intake man pulled!
remove, fuel line and cross over,fuel lineis on right bank only.
4:remove the injector connectors, or if one,just one.
5: remove the injector rail 3 rail bolts or 6 if both banks.
6: they are now free.
this one photo makes it obvious.... no?
you must get to here.

26342320-derva1l3mlhtf5qz32ooabpo-5-0.jpg to depressurize,
pull fuel pump relay as step 1
crank engine , let it stall from fuel,
then do it.

Nov 05, 2016 | 2004 Isuzu Rodeo

1 Answer

Fuel injector diagram


old post
no engine stated, ?? which one? 4AFE or 7Afe (TOY ENGINE)
the harness will not allow cross wiring injectors
how did you do that?
the #1 injector is on #1 cylinder
and on #1 fuel rail port.
the #1 cylinder on inline engines, the crank pulley end.
if you need wire colors, we can do that too.
or log in to mitchells DIY and read. that.
here is the 7aFE wires
B-O is 12vdc power key on, the ECU fires the 4 on right.

23865545-flsdwf0rx41rbdaez4cmhnol-2-0.jpg end old post day.

Mar 19, 2014 | 1993 Geo Prizm

2 Answers

1988 Chevrolet k1500 350 v8 not getting signal to fuel injectors


So, it's the injector circuit. There is a 10 amp injector fuse in the fuse block, on left side, 4th one down. Check this fuse. It supplies constant power to both injectors, on the red wire to injector 1, and a white wire splice from this to injector 2. A steady 12 volts anytime key is in on, run, or start. You can check this with a test light or voltmeter. Ground the test light and probe injector connector's red wire on injector 1, and the white wire on injector 2-both should be hot with key on.
This may be why the noid light didn't blink. The noid light must have this steady power signal, and when the computer internally grounds the injector ground circuit for a split second, you get injector pulse-or a blinking noid light.
You can check the ground circuit separately with a test light also for each injector. Place the ground clip of test light on the POSITIVE battery post, and probe the blue (ground) wire on injector 1, the engine must be cranking over, and the test light should be blinking. Do the same for the green wire on injector 2. If the test light is blinking on both ground wires, with engine cranking-the ground circuit is good. You are sending power down the ground wire to computer, and when the computer grounds the circuit, the tester will light up-it will blink because the computer only momentarily grounds the circuit to cause pulsing of the injectors.

Feb 18, 2014 | 1988 Chevrolet K1500

1 Answer

Not getting a negative or ground pulse at one of the injectors.


If you have sequential fuel injection, where each injector has its own dedicated ground wire to the computer, then I don't think re-setting will help for a single injector. But pull the connector off at the computer and make sure all the pins are good (none are bent or loose).
If you have a multi-port fuel injection (MPFI), then each bank (or side) of a v-6 or v-8 will splice that bank's ground wires together and enter the computer as a single grounding source for that bank (or side). This is called bank-fired (injectors on each bank pulse simultaneously). Not sure if a re-set would help this, check with the dealership.
Good luck.

Jan 14, 2012 | Jeep Grand Cherokee Cars & Trucks

1 Answer

How do i chage the fuel injector for a geo metro 1997 LSI?


REMOVAL & INSTALLATION Fig. 1: Removing injectors from fuel rail 84245032.gif
Fig. 2: Make sure injectors rotate freely in cylinder head 84245033.gif
  1. Relieve fuel system pressure and disconnect the negative battery cable.
  2. Remove intake air hose between throttle body and intercooler.
  3. Remove accelerator cable.
  4. Unclamp PCV and fuel return hoses from deliver pipe.
  5. Unclamp injector wiring harness.
  6. Disconnect injector coupler.
  7. Remove cold start injector pipe from delivery pipe.
  8. Remove vacuum hose from pressure regulator.
  9. Remove fuel feed hose from delivery pipe.
  10. Remove pressure regulator from delivery pipe.
  11. Remove delivery pipe with injectors.
  12. Remove injectors from delivery pipe. To install:
  13. Replace injector O-rings and lubricate with fuel. NOTE: Make sure injectors rotate smoothly. If not, probable cause is incorrect installation of O-ring.
  14. Check if insulator is scored or damaged. If it is, replace with new one.
  15. Connect delivery pipe with injectors.
  16. Install pressure regulator to delivery pipe using a new O-ring.
  17. Install fuel feed hose to delivery pipe.
  18. Install vacuum and fuel return hoses to pressure regulator and clamp securely.
  19. Install cold start injector pipe to delivery pipe using new gaskets.
  20. Install injector coupler. Clamp injector wiring harness.
  21. Install PCV hose to cylinder head.
  22. Install throttle position sensor coupler.
  23. Install accelerator cable and adjust free-play.
  24. Install intake air hose to throttle body and intercooler.
  25. Connect the negative battery cable.
  26. Start engine and check for leaks.
prev.gif next.gif

Jul 03, 2010 | 1997 Geo Metro

1 Answer

Car is sluggish and tends to bog down during hard


Could be several possibilities none of which I may be able to eliminate:
1. Tune-up!  You are not getting enough spark or Fuel!  Plug-wires may be cross-firing or bad ground from body to the engine - run a new ground wire to engine from battery or body-ground.
2. Replace fuel filter or do fuel pressure test to determine if f-pump is weak or lodged with corrosion or dirt particles.
3. replace plugs and wires and clean coil-pack ignition module (where plug wires originate from) use a brake-cleaner or throttle-body cleaner but be sure fumes are evaporated and dry before starting or spark could cause explosion from fumes. Oil on module could cause spark to jump.  Do not run plug wires along each other or will jump spark, wires must be crossed once or twice for prevention of this.\
4. check all vacuum lines around engine - a cracked vacuum line can cause a lot of problems.
5. injectors may be dirty or bad - easier to replace complete intake from scrap-yard then to pay $100.00 for new injectors each!
6. Coil-pack on ignition module could be cracked and may need to be replaced.
These are only possibilities of course with the little info you provided.
Hope this helps.

Jun 08, 2010 | 1999 Chevrolet Malibu

1 Answer

1991 4.3L GMC Jimmy S-15 will not start. Turns over, but does not start. Replace spark plugs and wires, ignition coil, module checked good. The plugs are gettin fire but not sending it to the motor?


You need 3 things.
Compression
Good hot blue spark to all plugs.
Good gasoline and proper fuel pressure. 13-13.5 lbs on your TBI
If you have all 3 then move on to injector pulse to both injectors.

Keep me posted and recheck your spark plug wire to make sure they are not crossed. firing order 1-2-3-4-5-6 cylinder # passenger side 1-3-5 front to back. cylinder # drivers side 2-4-6 front to back
distributor #1 is located at the 7 o"clock and rotates clock wise so next distributor post on the right working clock wise is #2. Good luck and hope this helps.

Jan 05, 2010 | 1991 GMC S-15 Jimmy

1 Answer

Ford trouble codes on a e 250 with a 5.4 eng codes 175 and 205 what is the most likly cause


P0205 Injector Circuit Malfunction - Cylinder 5
P0175 System too Rich (Bank 2)
A code P0175 may mean that one or more of the following has happened:
  • The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled
  • There could be a vacuum leak.
  • There could be a fuel pressure or delivery problem
Possible Solutions Possible solutions include:
  • Inspect all vacuum and PCV hoses, replace if necessary
  • Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
  • Inspect fuel lines for cracks, leaks, or pinches
  • Check the fuel pressure at the fuel rail
  • Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced.
  • Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)
The causes of a P0205 engine light

code could be any of the following:
  • Bad injector. This is usually the cause of this code but doesn't rule out the possibility of one of the other causes
  • Open in the wiring to the injector
  • Short in the wiring to the injector
  • Bad PCM
Possible Solutions
  1. First, using a DVOM check the resistance of the injector. If it isn't within specs, then replace the injector.
  2. Check for voltage at the fuel injector connector. It should have 10 volts or more.
  3. Visually check the connector for damage or broken wires.
  4. Visually check the injector for damage.
  5. If you have access to an injector tester, activate the injector and see if it operates. If the injector operates, then you likely have either an open in the wiring, or a blocked injector. If you do not have access to a tester, swap the injector with another one and see if the code changes. If the code changes, then change the injector.
  6. At the PCM, remove the driver wire from the PCM connector and Ground the wire. (Make sure you have the correct wire. If you're not sure, do not attempt) The injector should activate
  7. Replace the injector

Sep 18, 2009 | 2004 Ford E250

2 Answers

#2 cyl. misfire


replace crank sensor and if that isnt it replace #2 fuel injector

Jun 27, 2009 | 2001 Ford Windstar

1 Answer

91 oldsmobile cutlass supreme 2.3 quad 4 fuel injector diagram


INJECTOR #1-BLACK
INJECTOR #2-BLACK WITH LIGHT GREEN STRIPE
INJECTOR #3-BLACK W/PINK OR BLACK W/LIGHT BLUE STRIPE
INJECTOR #4-BLACK W/ RED STRIPE
INJECTOR #5-BLACK W/ WHITE STRIPE
INJECTOR #6-BLACK W/ YELLOW STRIPE.
HOPE THIS HELPS. LET ME KNOW. BEST OF LUCK

May 01, 2009 | 1991 Oldsmobile Cutlass Supreme

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