Question about 2003 Toyota ECHO

1 Answer

Replace spark plugs with plat core plug

Had replaced original 30 k plugs with platinum plugs . now engine runs rough and obd ii code reader has 3 codes -random/misfire, #3-misfire, #4 misfire, what is sequence of cylinders. does each igniter have specific cylinder ? i have factory repair manual and cannot find these solutions.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Toyota Master
  • 1,861 Answers

Platinum plugs are NOT recommended for the Echo. The heat ranges are different. Put the right plugs in it (buy them from a Toyota dealer) and see if your problem vanishes. I get this quite a bit, customers put in new plugs, and it runs worse than it did before they changed the plugs. Note that ALL Toyota engines have a specific plug engineered for each engine. Platinums do not work unless the engine was designed for it. Same with iridium and NO Toyota runs well on the "split fire" plugs. If the problem persidts, change the coils around, see if the misfire "moves" to a new location, and you get a DTC P-0300, P-0301 and P-0302. If so, your coil pack may have failed, BUT, do the plugs first.

Posted on Sep 25, 2008

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Starts up but runs rough, exhaust smells, and when you give it gas it wants to shut off.


How To Fix P0300 random misfire codes in your car ...

? 2:56
https://www.youtube.com/watch?v=OyvdWeyDHf4
Feb 5, 2010 - Uploaded by Scotty Kilmer
Scotty Kilmer, mechanic for the last 46 years and counting, shows how to fix your car if the check engine light ...

P0300 - OBD-II Trouble Code - RepairPal

repairpal.com > Encyclopedia > OBD II Codes
OBD II Fault Code. OBD II P0300. Fault Code Definition. Random, Multiple MisfireDetected. Symptoms. Check Engine Light flashing; Rough running, hesitation ...

P0300 - Check Engine Light Diagnostic Trouble Code ...

https://www.engine-light-help.com/P0300-check-engine-light.html
The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. The computer can also normally identify the ...

Random-Misfire Page

www.random-misfire.com/

Jan 24, 2016 | Cars & Trucks

2 Answers

Still having problems will not run good. 1997 ford 2.0 escort;new plugs&wires coil;fuel pump still codes 0351;


From a reputable repair website:


P0351 - OBD-II Trouble Code

Auto Systems and Repair

Ignition Coil "A" Circuit Primary/Secondary Malfunction Our emissions expert has put together the following information about the P0351 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
  • OBD II P0351 Ignition Coil "A" Circuit Primary/Secondary Malfunction
What does this mean? The ignition coil or coils are responsible for igniting the air/fuel mixture inside the combustion chambers. Without reliable performance from the ignition coil(s) the vehicle will stumble and misfire.
Code P0351 indicates there's an electrical problem in either the primary ( the computer side ) or the secondary ( the spark plug side ) of the Ignition Coil "A" Circuit.
Symptoms
  • Check Engine Light will illuminate
  • Engine idles rough
  • Engine misfires on acceleration
  • In rare cases, the engine may not exhibit noticeable symptoms
Common Problems That Trigger the P0351 Code
  • Defective Ignition Coil(s)
  • Defective Spark Plug(s)
  • Intake Manifold Vacuum leaks
  • Carbon buildup in the Throttle Body air passages
  • Defective Idle Air Control Valve or Electronic Body
Common Misdiagnosis
  • Ignition coil(s) replaced when cause of the malfunction was a vacuum leak
  • Spark Plugs replaced when cause of the malfunction was a vacuum leak

Dec 21, 2014 | Ford Cars & Trucks

1 Answer

I'm getting codes with obd II read for o2 sensor 1 bank 1 and sensor 1 bank 2 i have a rough running 2004 ford escape 3.0 V6


If the O2 Sensors are original,you could just change the front 2

The ones closest to the engine.

Any other issue you need to actually diagnose, as codes
are for just that reason

They don't ever tell you to replace anything

Running rough is more the O2 Sensors

Plugs
MAF Dirty
Vacuum Leaks
Ignition Coils going bad

May 31, 2011 | Ford Escape Cars & Trucks

2 Answers

Replaced sparkplugs and sparkplug wires, now runs rough. I checked connections all tight. check firing orger, looks right. run good till I touched it. Help.


Check the firing order with the firing order diagram that I have uploaded, and if that does not solve the problem then remove the spark plugs and be certain that there is an even spark plug gap between all of the spark plugs, (see the emission label under the hood for the correct spark plug gap) and be certain that there is not any split-fire or multi-fire spark plugs installed in the engine, because those plugs will not work with an OBD-II system, and a random mis-fire is the least that they will cause if installed in an OBD-II controlled vehicle.


b4cb725.jpg

Aug 18, 2010 | 2001 Ford Taurus

1 Answer

04 mazda 3s 2.3l. the emgine misfires randomly but frequently. does have power loss and poor gas mileage. there is no check engine light and had recent sparkplug change with motorcraft platnums and oil...


I have changed plugs using the platinum plugs and the problem don't go away. These plugs can make a car run worse in some cases. I have found it best to use the OEM or a step above on 4 cylin and 6 cylin engines. The Plats work fine in 8 cylin engines. You could also have a bad plug wire. The plug wire could be jumping spark. At night, open the hood, start the car with lights off. Look around the plug wires for sparks jumping. If a wire is bad, the spark is leaving the wire and grounding itself to the nearest metal causing rough engine idle and misfire.

Jun 16, 2010 | 2004 Mazda 3

1 Answer

96 ACCORD AUTOMATIC ROUGH IDEL AFTER WARMUP AND WHEN STOPPING


You should be seeing a check engine light on in your dash. Have someone with a OBD II reader plug in and pull any codes.
I would suspect the rough idle may have to do with many things, vehicle needs tune-up, spark plugs , wires, ect. The fuel filter need to be replaced.
These are just a few of the more simple possible remedy's.
Please let me know what you find

Feb 10, 2010 | 1996 Honda Accord

1 Answer

1998 dodge ram pickup 318 eng. engine idle rough on warm-up engine idle rough after warm-up shutting off engine and starting back up engine also runs sluggish in over drive at a low idle. I have...


If the engine seems to run fine over 1450 RPM maybe there is a vacuum hose leaking or EGR valve is slightly stuck open. Any help from the OBD II trouble codes? Or is there simply no MIL and no stored information in the OBD II computer read at the local parts store through the connector by the drivers knee?

Dec 04, 2009 | 1998 Dodge Ram 1500 4WD

4 Answers

New Spark plugs


most likey cracked or broken plug or crossed wires. get some chicken pliers (plastic from home depot elec department) pull wires one by one to locate after you figure it out go to auto zone & they will clear code maybe loan you tool they offer that

Sep 09, 2009 | 2004 Cadillac Escalade Esv

1 Answer

Rough running at idle


Get the code scanned to find out what exact POXXX code is stored in the ECM, this will help you big time.

Also plugs should be platinums that are good for 90-100K miles.

Bad gas mileage is from the Check engine light being on.

Mar 30, 2009 | Mitsubishi Lancer Cars & Trucks

4 Answers

2007 Jeep Liberty 3.7L engine


The Jeep comes with Platinum plugs from the factory.
And also a little secret-They are guarenteed from the manufacture for 1000,000 miles
Your Jeep should have Champion plugs in it.

Sep 03, 2008 | 2006 Jeep Liberty

Not finding what you are looking for?
2003 Toyota ECHO Logo

511 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6880 Answers

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

Answer questions

Manuals & User Guides

Loading...