Mazda MPV This minivan was among the class leaders with its roomy interior and efficient powertrain.

#1 misfire ONLY when it rains

  #1  
Old 01-25-2016, 12:09 PM
Junior Member
Thread Starter
Join Date: Jan 2016
Location: Kershaw
Posts: 1
Default #1 misfire ONLY when it rains

2004 MPV

Every time it rains I get a check engine light and it is at least #1 cylinder misfire. Changed rear bank coil and plugs and the #1 again 5,000 miles ago.
Just rained and back again.

Any idea what cover is missing or real fix?
 

Last edited by chrisj750; 01-25-2016 at 12:11 PM. Reason: Add Car Data
  #2  
Old 02-03-2016, 11:27 PM
Senior Member
Join Date: Jan 2016
Location: Northwest Indiana
Posts: 370
Default

Still a P0301? I know it's a little bit of work but, move your rear bank coils to the front and put the fronts to the rear. Don't clear the codes or you'll have to wait for the PCM to relearn cyl position. Put a small amount of dish soap into a hand held spray bottle and fill the rest with water. Simulate a rainy day by misting the solution around the coils for a minute or two or until the misfire returns under engine load. Check your codes and see if it moved to the front bank. i.e. P0304 05 or 06. This will confirm a bad coil. if it stays a 301, check your connection at the coil and at the harness.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dgonsoulin
Mazda CX-7
6
07-15-2016 05:34 PM
oatis314
Mazda MX-3 and Mazda MX-6
1
04-19-2008 07:34 AM
leftygolfguy
Mazda 323,Mazda 626 & Mazda 929
0
11-30-2007 08:55 AM
Richard
Mazda Millenia
3
01-18-2007 12:40 AM
CardsFan420
Mazda Millenia
1
11-08-2006 06:25 PM


Thread Tools
Search this Thread
Quick Reply: #1 misfire ONLY when it rains


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.