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Engine miss fire above 3000 revolution - Cars & Trucks

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No make model or year ,try reading it with a code reader first then ask how to cure it as absolutely no idea and with all the electronics on a modern car their is no chance of me telling you the correct answer

Posted on Feb 17, 2012

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Posted on Jan 02, 2017

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95 toyota 3.0 missing mid rpm ( 2500 to around 3000 )above ok and below ok most of the time. much better once you drive 30 miles


-Miss fire. Possibly due to low fuel pressure, bad injector pulse or plug wire/spark plug.
Check and replace.

Good Luck


Mai

May 19, 2017 | Toyota Cars & Trucks

1 Answer

360 amc engine is back firing


Blue flame out the exhaust means the timing is off. When you readjusted the valves, you really got the timing off. Go back and start over. When you are at top-dead center, the valves for that cylinder have to be closed. Good luck.

Nov 05, 2017 | Jeep J10 Cars & Trucks

1 Answer

1988 Ford F350 460,fuel injected, Wont start,,, Coil only sends spark once per revolution of the rotor


Hello Donn,

UN-fortunately 1988 is WELL before the OBD
(on board diagnostic)... DIAGNOSTIC TROUBLE
Codes (DTC) got standardized...

So DAYS can be wasted looking for commonality...
(troubles).

Rather than assuming your spark, timing, fuel, ECU...
Oxygen Sensors. INJECTORS are all askew...

I would suggest that if you SATURATED YOUR
HEADER BOLTS with LIQUID WRENCH...

and opened you EXHAUST ahead of your catalytic
converters... ahead of your mufflers... you engine would run...

Obviously DANGEROUS to operate in that condition... at
least you would know what had to be REPLACED before
you can operate your vehicle SAFELY.

If you decide the job is a bit too much... at least
check out your PURCHASE cost of a replacement
CAT and/or MUFFLER...

Try rockauto
http://www.rockauto.com/en/catalog/ford,1988,f-350,7.5l+460cid+v8,1126437,exhaust+&+emission

1988 FORD 350 7 5L 460cid V8 Catalytic Converter RockAuto

1988 FORD 350 7 5L 460cid V8 Muffler RockAuto

Mar 16, 2017 | Cars & Trucks

1 Answer

What does P3000 engine code mean?


No code 3000 that I know of.
A code 300 is a random miss-fire.

Jul 14, 2012 | 2006 Nissan Altima

1 Answer

Engine miss fire


Do you have a check engine light flashing when this happens? If not it is not a misfire.

Feb 17, 2012 | 2001 Nissan Maxima

2 Answers

What do I need done if codes p0171 p0174 p0301 p0305 p0316 is it major problems


OK, We'll cover the Diagnostic Test Codes (DTCs), starting with the standard definition set by SAE J2012 (Revised December 2007)
DTC P0171 "System Too Lean Bank 1"
DTC P0174 "System Too Lean Bank 2"
DTC P0301 "Cylinder 1 Misfire Detected"
DTC P0305 "Cylinder 5 Misfire Detected"
DTC P0316 "Engine Misfire Detected on Startup (First 1000 Revolutions)"

The "system lean" codes are pretty much telling you that there is way too much oxygen in the exhaust. There is too much oxygen on BOTH sides of the engine, and that is why you are getting codes for bank 1 and for bank 2. Bank 1 is the side where #1 cykinder is located and Bank 2 is the opposite side.

The misfire codes are pretty self-explanatory. #1 and # 5 cylinders are misfiring. The P0316 DTC is telling you that the misfire monitor is detecting a misfire as soon as the engine starts. This tells you that it is a very severe misfire and that the engine does not have to warm up and the car does not have to be driven to detect the misfire.

A misfire can be caused by many things it can be vacuum leaks, bad spark plugs, bad ignition cables, faulty ignition coils, fouled or malfunctioning injectors or injector circuits, blown head gasket, cracked cylinder head, burnt valves, etc.. etc..

However, look at the codes you have. Then look at the firing order for your engine. 2002 Mercury Sable is only equipped with a 3.0L 2V 6-cylinder engine.
The firing order is 1-4-2-5-3-6

Now if you take the firing order and split it in half, stack the two halves on top of each other, it looks like this:
1-4-2
5-3-6

When you look at the firing order this way, you can see that cylinders 1 an 5, 4 and 3, and 2 and 6, are "PAIRED" cylinders. They are exacly opposite in the firing order. Now, the cylinder only fires every second revolution of the crankshaft. With paired cylinders, one of the cylinders in the pair will fire on the first revolution and the other cylinder will fire on the second revolution.

Looking back at your codes, please note that the cylinders that are setting the misfire codes are paired cylinders.

Now the coil pack for your ignition is actually made up of three coils. Each coil fires a set of paired cylinders. If you look at the top of the coil, it will usually be marked with the cylinder numbers that each coil tower is supposed to connect to. The coil will look just like the firing order split and stacked as above.

With all of this said, I would say that it is VERY LIKELY that your misfire codes are being caused by a defective ignition coil.

The lean codes are a little different.

These are USUALLY caused by vacuum leaks which allow too much air into the engine that is not getting measured by the Mass Airflow (MAF) sensor and causes the engine to be getting too much air and not enough fuel (running lean).

I would take a good look at all of the vacuum hoses and lines. Ford is notorious for getting holes in the rubber parts that connect the PCV tubes.

If you do not find any obvious reasons for a vacuum leak, then you may want to fix the misfire codes, reset the computer memory, and drive the vehicle to see if the lean codes come back again. The misfires COULD be the cause of the lean codes. In a perfect world, this is not supposed to happen because the misfire monitors setting codes will not allow the oxygen sensor monitors to run and set lean codes. However, I HAVE seen cylinder misfires that have caused lean codes.

I hope this helps you to figure it out. Good luck!

Feb 03, 2012 | 2002 Mercury Sable

1 Answer

I have a 2004 Kia Rio Cinco. Riding 2 miles from my home, car sounded like it blew a belt, car instantly quit and coasted to nearest place to park. It did throw a timing belt. In trouble shooting, it not...


were the RPM's high(above 3000) when the belt broke? if so that would explain the engine failure. the car has an interference engine which means if the crank turns a few revolutions after the camshaft has stopped then it can cause some major engine damage.

Jul 26, 2011 | 2004 Kia Rio

1 Answer

1995 chevy lumina 3.1 not firing at one of the cylinders. it is getting fire at the spark plug. but has a definite miss at this location. I have changed the injector out but it did not help. what next?


do a compression test on the engine to see if the valves are working properly. You may be able to borrow a tester from the parts store. remove the spark plugs and screw the tester into each plug hole one at a time. Crank the engine a couple revolutions nd then check the pressure on the gage. Write it down, release the pressure in the gage, and go on to the next cylinder. Any cylinder that is much lower than the rest has a valve or rings issue. If you have questions, please let me know.

Oct 15, 2010 | 1995 Chevrolet Lumina

1 Answer

I changed my mr2 distributor and the engine is not working properly the engine is not on time.


The firing order may not have been restored to its correct setting when the distributor was installed. Also check for loose connection and moisture in the distributor. Check if you have missed out your crank position sensor which tells the computer the revolution.

Mar 20, 2010 | 1993 Toyota MR2

2 Answers

2003 f-150, 5.4liter is idling rough, an gives codes p0316,p1270


You didn't specify where you put the seafoam (oil, gas tank, vacuum lines etc) It's very possible that the fuel filter needs changing and the spark plugs may very well be fouled. After seafoaming a car it's a good idea to really open it up to burn off the foam and residue.

May 06, 2009 | 2003 Ford Expedition

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