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Thanks, we have checked the plug for fire. our book explains the codes but did not state everything to check. we borrowed a tool to check compression, and plan to move to the injectors from there, bu

Thanks, we have checked the plug for fire. our book explains the codes but did not state everything to check. we borrowed a tool to check compression, and plan to move to the injectors from there, but did not know if there was anything thing else we should check, or if we were even on the right track. thank you

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  • Cars & Trucks Master
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You have not given any relevant information as to make year model or problems. ON this I would have the fault codes read so that we can help by seeing what codes were found.. Remember the more information you give, the more accurate the help you will receive.

Posted on Dec 05, 2014

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SOURCE: rough idle

make sure the trottle if free of carbon built if is not clean it with toot brush and carburetor cleaner

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SOURCE: my 2000 v8 toyota tundra suddenly lost power

Does this motor have the equivalent of crank-trigger ignition? If so, is the sensor A-OK?

Posted on Mar 02, 2009

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SOURCE: Check engine light comes on temporarily - engine chuggs at idle

Before changing you pcm try cleaning your egr valve. remove the valve and see if its stuck in the open position if so use a small pick to clean around the spring.

Posted on Mar 12, 2009

  • 202 Answers

SOURCE: 96 ford explorer code p0301 mis fire 1

Sounds like either a bad plug wire, or coil pack. This is about all that would cause the misfire.

Posted on Apr 17, 2009

goldenracer9
  • 9 Answers

SOURCE: '97 A4 1.8T, coolant leak resulted in brief overheat,leak fixed,diag.code now shows #2 cyl.missing (badly), compression good,injectors good,coils/plugs good,missing badly,could the brief overheat have

did the car over heat for long?
there could possibly be damage to your head like warping due to overheating and blowing a head gasket or something along those lines .
first check the oil dipstick is it milky?
then check the coolant is it oily?
and when it is running is it blowing any white smoke?
if you replaced the plugs and it is misfiring did you plug the wire all the way back on the plugs if not then the problem is a plug wire being loose and loosing connection with the plug.
sounds like a simple fix if you don't have water in your oil or white smoke coming out the exhaust.
troubleshooting it can be a bigger job but if you nail the right symptoms down you can corner the problem.
like if it is a coil pack or bad wire switch them with another one and see if the problem follows the wire or coil pack.for instance take the number one plug wire off and the number two wire off and put the number one wire on number two and see if the number one misfires. if so then the wire is the problem if not then try numbers three and four until you find out which cylinder is the culprit.
good luck and happy hunting.


Posted on Jun 02, 2009

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1 Answer

Cyl 5 has miss fire


On a what?

Changing spark plugs, doesn't make it worse

Best to have a shop road test with scan tool
& look at data

Aug 19, 2014 | Cars & Trucks

1 Answer

NEW BATTERY, NEW ALTERNATOR, ENGINE WILL CRANK BUT NO FIRE.


no engine option size stated, so i wing it..(generic is harder)
ok battery changed, no need for jumper cables now.
engine cranks robustly.
so no fire, i hate to tell you that word means (NOTHING)
there is fire to each spark plug (tip spark = fire) then there
is combustion fire , a goal on all cylinders.
so use the word spark , you then check spark at all cylinders.
please.
if spark is gone on 1 cylinder work that.
if spark is gone on all cylinder we then scan the ECU.
RULE 1, no EFI car , runs fueling unit (IT) thinks(sic) there is spark (3 way checks) this is Crash and fire protection on call cars.
most books fail to say this very important feature in all modern cars.
so that is why spark is 1st. never ever done last.
you crank engine for 5 seconds.
release key, not off. the key yet.
and the scan tool, shows P0340/355 or any codes relate to spark
CMP./CKP ,etc.
and the rpm shows 250RPM cranking, yes,the scan tool can see
RPM cranking and is a TOP check , missed by many noobs.

so now you have spark
on all cylinders.
we cross fingers #1 is good, 150PSI compression on all cylinders, min.
and blame fueling.
A: is it flooding or starving???? the spark tips (i bet its tunedup, huh)
are dry or wet.
B: more later if you get this far.

just oneline says it. for 100 years now. (otto cycle engines)
(cranks ok, compression good,spark good x4,x6, fueling last)

Feb 11, 2014 | 1996 Honda Passport

2 Answers

Nissan suuny fb15 misssing on no2 cy plug and injecter good


misfire, cylinder 2, P0302 , is the OBD DLC code.
you forgot to state the year, or country? making help , near impossible. but ....Ill try, in the generic.

1: low compresion (tool is called, a compressiong gauge)
2: bad spark to #2 (a spark tester)
3: bad injection (check coil for about 10ohms , listen for click,
then use a NOID lamp to see if injector is firing.
if its firing , then do a power balance test. on all 4.
that is how to do this. all EFI. OTTO cycle engine.

Oct 01, 2013 | Suzuki Cars & Trucks

3 Answers

Have 1999chrysler sebring wont fire put new dis an crank sen still wont fire is gasing ok


If you have a check engine light go to Auto Zone and use their borrow a tool offer to borrow a code reader. There are several things that can cause this. Check the fuses in the interior fuse panel and make sure they are all intact and not blown. If all the fuses are good check the ignition relay in the power distribution center under the hood. If that and the fuses are good your next test would be the ignition switch itself.

Nov 03, 2011 | 1999 Chrysler Sebring

1 Answer

My 05cavalier 2.2eco tec quit on me going down the highway. initially thought timing chain but not it. no fire at spark plugs need to no how to check ecm and crank sensor.


You will need to procure an OBD-II scan tool. You can purchase this or perhaps rent/borrow one. Autozone has a tool rental program if I recall correctly and may be able to provide you with one.

There is an OBD-II diagnositics port under the dash directly under the steering column. There will most likely be directions with the tool and/or provided by the person you got it from.

If you didn't get instructions:

1. Plug it in and turn it on if it does not automatically do so.

2. Start the engine or turn on the electrical system, depends on what the scanner directions say

3. Press the button to read the codes if it does not do so on it's own

4. Scroll through the codes and write them down. OBD-II does have a list of standardized codes, but there are also GM specific ones. There are pending codes which should be noted and fault codes which are the big problems.

5. Kill the engine/electrical system and remove the tool.

Jul 20, 2011 | 2004 Chevrolet Cavalier

1 Answer

How to check the trouble codes on a 2001 chrysler concorde 2 7L


I assume you are asking about the "check engine" diagonstic codes.

You can check the codes yourself by using the key and ignition switch. With the engine off, put the key in the ignition and turn it ON-OFF-ON-OFF-ON -- do not turn to the extreme right "start engine" positon, but to the last click just before the start position.
You will then see a code list read out where the odometer (mileage) usually displays. It will start with dashes in the readout "-------", then each diagnostic code will appear in sequence like P1684, P0700, and then the word "done" after all of the codes have been displayed.

One word of warning -- I have found that sometimes all of the diagnostic codes do not display with this method, so it would be best to also check the codes using an electronic diagnostic code reader. You can do this for free yourself as explained below.

Go to your nearest "national chain -- do it yourself" auto parts store such as Auto Zone or Advance Auto. Ask to borrow the "engine code reader diagnostic tool" -- you will have to give them your driver's license to borrow it. Then, in the parking lot, check the diagnostic codes yourself.

Turn the car key to the "accessory position" -- i.e., not started, but with the accessories on. Power on the diagnostic tool. Plug the attached pin connector into the Chrysler diagnostic socket located just under the dasboard below the ignition switch. Press the "read codes" button on the diagnostic tool -- you will see a diagnostic code and a brief message about what it means. Keep pressing the "next" button until you have read all of the codes.

P.S. Don't forget to get your driver's license back when you return the diagnostic tool!
__
tekwize
www.topcashideas.com

Nov 08, 2009 | 2001 Chrysler Concorde

3 Answers

No spark installed new coil and had mogel for the distibutor checked


Check fuses relays and ground wires. The check inside the distributor cap and make sure the piece the rotor inside distributor is clean of oil and the area below hall effect is dry and without oil.The piece down below is also a item that can effect it from firing.it is a magneto and it controls the firing and fuel by sending signals to the ecm. If you check the above without finding an issue the best thing to do is see if you can borrow a scan tool to get any codes that could be helpful with diagnosing. Im sorry if this isnt exact help but it is trail and elimination that fixes issues like this instead of just replaceing parts.

Oct 03, 2009 | 1995 Ford Taurus

2 Answers

STARTS RUNS ROUGH BUT YOU CARNT TOUCH ACCELRATOR AS IT DIES STRAIGHT AWAY


The list of things to check is long and for the most part basic. I'd start with general tune-up diagnostics. My money is on the the dist cap & rotor as your culprits -these get the most wear, easiest to fix and the 1st place I'd look. It will cause it to run rough and die when you accelerate because it is not firing or firing the wrong cylinders. It may look good but still have a crack that you can't find. But I predict you will find a nice little pile of carbon dust and states of corrosion on the rotor & pins in the cap like I did when I had the same problem on my Civic a few years ago.

If that doesn't do the trick, you want to start by determining if it is dying from too little fuel or a weak spark
Weak spark will cause flooding- too much gas leftover after a weak spark eventually floods the engine- you will probably smell gas at the throttle body and you will have to wait before it will start again due to flooding. Not an absolute diagnostic, but if you smell fuel you can be pretty sure your problem is ignition or emissions related. It may still be an emissions component such as EGR or even a clogged cat or a potato stuck up the tailpipe.
Lean fuel conditions point to the fuel filter, fuel rail and fuel pump pressures and injectors.

General tune-up diagnostics:
Ignition: dist cap & rotor; Check plugs and wire conditions; Ignition coil or transistors may be bad but not causing a total loss of spark
Fuel & Emissions: Fuel filter, fuel rail pressures, EGR & PCV valves; check diagnostic codes from your OBD it might give a clue.
Hows your compression and timing? If you have over 90Kmiles and you haven't replaced your timing belt it may have stretched or jumped a gear notch. If this is the case you should change it before it breaks and bends your valves, causing expensive damage to the valve train.
If you want to fix your own then pick up a Haynes manual for your model and pick up the Haynes emissions & fuel injection books to demystify emissions computer codes, troubleshooting and repair. You can probably borrow these from your library or pick them up cheap at a used book store if money is tight.

Apr 30, 2009 | Honda Accord Cars & Trucks

1 Answer

Cranks but won't fire. ran fine just before this happened


It will if you have the Code book to tell you what Codes are What. Try Locating the Fuse Relay Panel under the Hood, Look for the Relay that is Marked "Fuel Pump" "Starter" Replace these and see what you Have. Also, Check the Tension on your Belt. If the Belt Tensioner is not holding the Belt Tight Enough you will get the No Start Prob as Stated above. Let me Know! Please Rate my Response, I need all the Help That I can Get! Thanks!

Jan 28, 2009 | 2003 Chevrolet Malibu

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