2005 zx3 2.0l - misfire on 1 & 4 - Page 2 - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFest

Reply




 
LinkBack Thread Tools Display Modes
Old 03-30-2019, 07:56 PM   #11
Focus Rookie
 
Join Date: Mar 2019
Fan#: 411501
Posts: 14
Points 53, Level 1
Points: 53, Level: 1 Points: 53, Level: 1 Points: 53, Level: 1
Level Up 6% Completed
Level up: 6% Level up: 6% Level up: 6%
Forum Activity 33%
Activity: 33% Activity: 33% Activity: 33%
FF Reputation: 1 taintwookiee Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by zacautomotive View Post
I know you replaced the coils. I wonder if maybe the fuel injectors are just not firing as good as they could be.

Sent from my LG-LS997 using FF Mobile

at this point that would be great if that were true as i could just swap them out, is there any way of testing them to see? i can feel them clicking all exactly the same but other than that idk how to test more.

here are the basic symptoms that hopefully narrow it down.

1. has error codes p0300, p0301, p0304.
2. idles perfectly fine no matter how long it idles for.
3. rev's awesome when driving and and shifts great
4.misfires then sends blinking cel when misfiring, usually after 3rd gear and after about 15 minutes of driving after cold start. car loses power and bos down while this happens.
5. i pull over and turn the car off then right back on the misfire is gone. comes back after a few minutes of driving.

I am only driving the car to test if it has went away but nothing yet.
taintwookiee is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-30-2019, 09:15 PM   #12
Focus Enthusiast
 
zacautomotive's Avatar
 
Join Date: Jun 2018
Fan#: 402829
Location: Pleasant Garden, NC
What I Drive: 2010 Ford Focus,2017 Ford Fiesta ST

Posts: 385
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 78%
Activity: 78% Activity: 78% Activity: 78%
FF Reputation: 1 zacautomotive Good Standing Member
Buy-Sell-Trade Rating: (0)
It kind of sounds like it's starving for fuel maybe the fuel pump is crapping out. Ones it gets hot it just gives up. You would need to be able to monitor fuel pressure somehow.

Sent from my LG-LS997 using FF Mobile
zacautomotive is online now  
    Reply With Quote Quick reply to this message
Old 03-30-2019, 09:28 PM   #13
Focus Rookie
 
Join Date: Mar 2019
Fan#: 411501
Posts: 14
Points 53, Level 1
Points: 53, Level: 1 Points: 53, Level: 1 Points: 53, Level: 1
Level Up 6% Completed
Level up: 6% Level up: 6% Level up: 6%
Forum Activity 33%
Activity: 33% Activity: 33% Activity: 33%
FF Reputation: 1 taintwookiee Good Standing Member
Buy-Sell-Trade Rating: (0)
I have the torque pro app that can monitor the fuel pressure so i will give that a run hee in a minute, what should i look for that would indicate that there is something wrong with the fuel pressure. I assume it would fluctuate when misfiring but what direction should i look for it going? also the misfire does clear up when driving it a bit more but then will come back on the same, would that still possibly be the fuel pump? thanks for all the help.
taintwookiee is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-30-2019, 09:38 PM   #14
Focus Enthusiast
 
zacautomotive's Avatar
 
Join Date: Jun 2018
Fan#: 402829
Location: Pleasant Garden, NC
What I Drive: 2010 Ford Focus,2017 Ford Fiesta ST

Posts: 385
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 78%
Activity: 78% Activity: 78% Activity: 78%
FF Reputation: 1 zacautomotive Good Standing Member
Buy-Sell-Trade Rating: (0)
I would be looking for the fuel pressure to drop.If you do some digging on this site you will find some issues with the older Focus different engine than yours were all the running issues ended up being low fuel pressure. I don't know what the proper fuel pressure spec is though so that's something you would have to fine.

Sent from my LG-LS997 using FF Mobile
zacautomotive is online now  
    Reply With Quote Quick reply to this message
Old 03-31-2019, 02:35 AM   #15
Focus Fanatic
 
Join Date: Mar 2012
Fan#: 96610
Location: Fort Worth, TX
What I Drive: 00 wagon, 02 sedan both zetec atx

Posts: 14,614
Points 9,011, Level 63
Points: 9,011, Level: 63 Points: 9,011, Level: 63 Points: 9,011, Level: 63
Level Up 87% Completed
Level up: 87% Level up: 87% Level up: 87%
Forum Activity 100%
Activity: 100% Activity: 100% Activity: 100%
FF Reputation: 62 amc49 Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Around 40 psi.

PCV hose is likely OK if car idles well.

If they run ethanol in the local fuel it could just be water in that making erratic come and go misfire, change where you buy gas for a while. If fuel filter hasn't been changed then do it, it serves to remove quite a bit of water that the matrix inside filter normally catches. Once overloaded though it has to let water go through.
__________________
Fix the driver first, then fixing the car becomes so much easier..........
amc49 is online now  
    Reply With Quote Quick reply to this message
Old 03-31-2019, 11:54 AM   #16
Focus Enthusiast
 
Paul1958's Avatar
 
Join Date: Apr 2014
Fan#: 157234
Location: Hudson, MA
What I Drive: 2002 Focus wagon 2.0L Zetec 5-speed

Posts: 544
Points 3,757, Level 38
Points: 3,757, Level: 38 Points: 3,757, Level: 38 Points: 3,757, Level: 38
Level Up 72% Completed
Level up: 72% Level up: 72% Level up: 72%
Forum Activity 95%
Activity: 95% Activity: 95% Activity: 95%
FF Reputation: 15 Paul1958 Great Standing Member
Buy-Sell-Trade Rating: (0)
Did you try to swap the 1 and 4 coils with the 2 and 3 coils (aka swaptronics) and see if the DTCs follow the cylinders or coils.


Paul
__________________
2005 ZX4 SE 2.0L Duratec 5-speed 190K miles
2002 Wagon SE 2.0L Zetec 5-speed 128K miles
Paul1958 is offline  
    Reply With Quote Quick reply to this message
Old 03-31-2019, 05:30 PM   #17
Focus Rookie
 
Join Date: Mar 2019
Fan#: 411501
Posts: 14
Points 53, Level 1
Points: 53, Level: 1 Points: 53, Level: 1 Points: 53, Level: 1
Level Up 6% Completed
Level up: 6% Level up: 6% Level up: 6%
Forum Activity 33%
Activity: 33% Activity: 33% Activity: 33%
FF Reputation: 1 taintwookiee Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by zacautomotive View Post
It kind of sounds like it's starving for fuel maybe the fuel pump is crapping out. Ones it gets hot it just gives up. You would need to be able to monitor fuel pressure somehow.

Sent from my LG-LS997 using FF Mobile
I went for a test drive today and while i kept the acceleration smooth and not much power i had no misfires but when i accelerated a bit more aggressive it immediately misfired.

I also kept track of the fuel rail pressure while at idle it was hovering around 39psi and fluctuated 2-3 psi while driving with no misfires. then while it was misfiring it stayed exactly the same with only 2-3 psi fluctuations.

i kept eye on the fuel rail pressure gauge while i was driving, a high of 46psi and a low of 32psi, i was watching this the whole time and never seen them go to 32psi so i assume it was a very fast fluctuation when it happened and im pretty sure that happened when i was turning on my mountain.

i have $100 dollars paypal to whoever helps me figure this out!
Attached Thumbnails
2005 zx3 2.0l - misfire on 1 & 4-54520444_364808954125321_5798034849772077056_n.png  


Last edited by taintwookiee; 03-31-2019 at 05:31 PM. Reason: added image
taintwookiee is offline  
    Reply With Quote Quick reply to this message
Old 03-31-2019, 05:32 PM   #18
Focus Rookie
 
Join Date: Mar 2019
Fan#: 411501
Posts: 14
Points 53, Level 1
Points: 53, Level: 1 Points: 53, Level: 1 Points: 53, Level: 1
Level Up 6% Completed
Level up: 6% Level up: 6% Level up: 6%
Forum Activity 33%
Activity: 33% Activity: 33% Activity: 33%
FF Reputation: 1 taintwookiee Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Paul1958 View Post
Did you try to swap the 1 and 4 coils with the 2 and 3 coils (aka swaptronics) and see if the DTCs follow the cylinders or coils.


Paul

yeah i changed all coils and swapped and they stay on the 1 and 4
taintwookiee is offline  
    Reply With Quote Quick reply to this message
Old 03-31-2019, 06:00 PM   #19
Focus Enthusiast
 
zacautomotive's Avatar
 
Join Date: Jun 2018
Fan#: 402829
Location: Pleasant Garden, NC
What I Drive: 2010 Ford Focus,2017 Ford Fiesta ST

Posts: 385
Points 440, Level 8
Points: 440, Level: 8 Points: 440, Level: 8 Points: 440, Level: 8
Level Up 80% Completed
Level up: 80% Level up: 80% Level up: 80%
Forum Activity 78%
Activity: 78% Activity: 78% Activity: 78%
FF Reputation: 1 zacautomotive Good Standing Member
Buy-Sell-Trade Rating: (0)
Do you have a compression tester?
You could also move the fuel injectors.
Put some high quality fuel system cleaner in. Just bouncing ideas.

Sent from my LG-LS997 using FF Mobile

Last edited by zacautomotive; 03-31-2019 at 06:10 PM.
zacautomotive is online now  
    Reply With Quote Quick reply to this message
Old 03-31-2019, 07:29 PM   #20
Focus Enthusiast
 
Paul1958's Avatar
 
Join Date: Apr 2014
Fan#: 157234
Location: Hudson, MA
What I Drive: 2002 Focus wagon 2.0L Zetec 5-speed

Posts: 544
Points 3,757, Level 38
Points: 3,757, Level: 38 Points: 3,757, Level: 38 Points: 3,757, Level: 38
Level Up 72% Completed
Level up: 72% Level up: 72% Level up: 72%
Forum Activity 95%
Activity: 95% Activity: 95% Activity: 95%
FF Reputation: 15 Paul1958 Great Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by taintwookiee View Post
I went for a test drive today and while i kept the acceleration smooth and not much power i had no misfires but when i accelerated a bit more aggressive it immediately misfired.

I also kept track of the fuel rail pressure while at idle it was hovering around 39psi and fluctuated 2-3 psi while driving with no misfires. then while it was misfiring it stayed exactly the same with only 2-3 psi fluctuations.

i kept eye on the fuel rail pressure gauge while i was driving, a high of 46psi and a low of 32psi, i was watching this the whole time and never seen them go to 32psi so i assume it was a very fast fluctuation when it happened and im pretty sure that happened when i was turning on my mountain.

i have $100 dollars paypal to whoever helps me figure this out!
Keep in mind that the fuel pressure you see on a scan tool will be the relative fuel pressure (RFP) which should always be 39/40 psi. If you put a mechanical gauge on the fuel rail you will see the absolute fuel pressure which should be in the range of 30-45 psi. Absolute fuel pressure should be lowest at idle or anytime the throttle blade is closed and manifold vacuum (negative pressure) is high.

Paul
__________________
2005 ZX4 SE 2.0L Duratec 5-speed 190K miles
2002 Wagon SE 2.0L Zetec 5-speed 128K miles
Paul1958 is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2005 focus zx3 2.0l to 2.5l swap TunerZX3 Engine & Transmission Swap 8 02-18-2019 11:22 AM
Boosted Crew Updated ZX3_2NV General Forced Induction 66 01-26-2009 11:22 AM
The Ford Focus - General History and Information S2 General Car Chat Lounge 1 11-14-2008 02:04 PM
2.5" exhaust options for 2.0L Duratec ZX3? geekspeed DURATEC Performance (2003-2007) 31 04-19-2007 08:06 AM
SVT Suspension 2005 ZX3 OverFocused DURATEC Performance (2003-2007) 1 11-23-2004 04:43 PM


All times are GMT -5. The time now is 05:15 PM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1