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p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ

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Old 12-24-2011, 02:41 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by boostedgeezer
We have been seeing alot of this with the newer Toyota cars and trucks. Are u at the dealer or a private shop? Which scanner were you using. We have the older pgm that honda did away with in i believe 2004 but Bosch bought Vetronix and their new software is pretty good coverage for Asian vehicles.
Private shop. I personally own a Snap-On Modis, fully updated plus the euro add-on. It's nice having the 4 channel oscilloscope built in.
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Old 12-24-2011, 06:28 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by seanbev24
Not necessarily. A perfect example is an Odyssey I had at work I while back. It had codes p0300,301,302,303,304,305,306. 1 dead coil on cylinder 5 was causing everything.

This is another benefit of a good scan tool. Instead of believing the codes, I was able to get into the misfire monitors and see for myself which cylinder was dead. Took all of 5 minutes.
Hondas are pretty bad for distinguishing between misfiring in specific cylinders!
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Old 12-24-2011, 06:30 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by seanbev24
Private shop. I personally own a Snap-On Modis, fully updated plus the euro add-on. It's nice having the 4 channel oscilloscope built in.
I work with the previous one.
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Old 12-24-2011, 07:25 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by seanbev24
Private shop. I personally own a Snap-On Modis, fully updated plus the euro add-on. It's nice having the 4 channel oscilloscope built in.
We have the solus pro which we use mostly on our domestic vehciles, how is the coverage for euro?
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Old 12-25-2011, 04:49 AM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Could b ignition related,fuel related,vacuum related or bad sensor of some sort.uve got multiple misfires and lean code. I'd pay the $$ have dealer just diagnose it. I'm sure u can repair it urself but diagnose actually problems gonna b tough without good scanner..good luck
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Old 12-27-2011, 07:42 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by boostedgeezer
We have been seeing alot of this with the newer Toyota cars and trucks. Are u at the dealer or a private shop? Which scanner were you using. We have the older pgm that honda did away with in i believe 2004 but Bosch bought Vetronix and their new software is pretty good coverage for Asian vehicles.
If you guys work on a lot of Hondas, it would be wise to invest in an HDS. We have one(indy shop) and it is well worth the price. We do everything in-house from keys to PCM reprogramming. We only send the cars to the dealer for warranty work.
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Old 12-27-2011, 07:45 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by boostedb18ccoup
2000 Honda Civic Dx. Car starts misfiring as it warms up. Has total loss of power. Won't go over 30mph. Misfires bad. Check all ignition componets. PLZ HELP!
The car is obd2. Why are you guessing? There is plenty of data available with the right tools. Take it to a shop,or invest in the proper tooling...
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Old 12-27-2011, 08:12 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by DCFIVER
The car is obd2. Why are you guessing? There is plenty of data available with the right tools. Take it to a shop,or invest in the proper tooling...
Because it is far better to spend all your time and money trying to figure it out than to pay an hour of diagnostic labor.
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Old 12-30-2011, 06:28 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Take it to Honda and have them run it on their HDS. Youll have you answer within an hour.
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Old 01-06-2012, 01:25 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
ive been so busy with work and school. thanks for all the good comments without the inmature negativity.

When it misfires it goes lean. Fuel pump, regulator, filter????
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Old 02-16-2012, 04:07 PM
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Default Re: p0300 p0301 p0302 p0303 p0304 p1399 NEED HELP! EXPERTS PLZ
Originally Posted by boostedb18ccoup
whats compression of a y7 at optimum level? service limit?
Originally Posted by boostedb18ccoup
2000 Honda Civic Dx. Car starts misfiring as it warms up. Has total loss of power. Won't go over 30mph. Misfires bad. Check all ignition componets. PLZ HELP!
Well it's been 2 months did you get it fixed. Please reply with the solution. Thanks
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