Power drop Off - 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    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 04-20-2014, 07:57 PM   #1
Spike0205
Focus Rookie
 
Join Date: Apr 2014
Fan#: 155682
Location: Dillsburg, PA
What I Drive: 2003 Silver ZX5

Posts: 8
FF Reputation: 1 Spike0205 Good Standing Member
Buy-Sell-Trade Rating: (0)
Exclamation Power drop Off

Well two week ago I had an ignition coil go bad. Replaced the wires and coil pack. Fixed the
Problem of a non firing cylinder. This week started the car and pulled out the drive way and
had the accelerator half way down; started off around 3000-3500 rpm felt like the engine
is stumbling and then takes off. But it varies sometimes. I went ahead
and replaced the fuel pump, throttle Position Sensor and new fuel filter. Does
Anyone have any other ideas. I don't want to spend another weekend trying anything
and everything


Spike0205 is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-20-2014, 08:07 PM   #2
freemind
Vince your Moderator
 
freemind's Avatar
 
Join Date: Jul 2009
Fan#: 67513
Location: Seattle, WA
What I Drive: 2002 ZX3 and a 2010 Focus SE (Work)

Posts: 4,505
Points 6,375, Level 52
Points: 6,375, Level: 52 Points: 6,375, Level: 52 Points: 6,375, Level: 52
Level Up 13% Completed
Level up: 13% Level up: 13% Level up: 13%
Forum Activity 47%
Activity: 47% Activity: 47% Activity: 47%
FF Reputation: 24 freemind Great Standing Member
Buy-Sell-Trade Rating: (23)
The coil pigtail. Inspect it for pulled and/or broken wires, insulation.
__________________
133whp-126ftlbsTQ Eclipse CD8443,Eclipse PA5422, JBL GTO751EZ, PPI 356cs(Rebranded A/D/S 346cs), JBL p1024, SubThump enclosure, RAAmat BXT, Damplifier Pro

Hatch Nation #140
Caeci caecos ducentes
freemind is offline  
    Reply With Quote Quick reply to this message
Old 04-20-2014, 08:21 PM   #3
Spike0205
Focus Rookie
 
Join Date: Apr 2014
Fan#: 155682
Location: Dillsburg, PA
What I Drive: 2003 Silver ZX5

Posts: 8
FF Reputation: 1 Spike0205 Good Standing Member
Buy-Sell-Trade Rating: (0)
Which coil set? Fuel pump wires or the ignition wiring set?
Spike0205 is offline  
    Reply With Quote Quick reply to this message
Old 04-20-2014, 09:00 PM   #4
sailor
Crankshaft
 
sailor's Avatar
 
Join Date: Jun 2008
Fan#: 57268
Location: Williamsville, NY
What I Drive: 2004 Pitch Black ZTS 2.3 5spd.

Posts: 16,788
Points 12,025, Level 71
Points: 12,025, Level: 71 Points: 12,025, Level: 71 Points: 12,025, Level: 71
Level Up 94% Completed
Level up: 94% Level up: 94% Level up: 94%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 79 sailor Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Ignition Coil
__________________
"Rubber Side Down"

S.R. #275
sailor is offline  
    Reply With Quote Quick reply to this message
Old 05-03-2014, 10:25 AM   #5
Spike0205
Focus Rookie
 
Join Date: Apr 2014
Fan#: 155682
Location: Dillsburg, PA
What I Drive: 2003 Silver ZX5

Posts: 8
FF Reputation: 1 Spike0205 Good Standing Member
Buy-Sell-Trade Rating: (0)
code update

I inspected the coil wires. They all look to be in good condition. So I took it over to the local parts shop to have them use a code reader on it. It gave two codes.
P0102- Mass Air Flow
P1246- Generator load input condition

Both these codes have open or shorted electrical causes as explanation.
I am at the point I may actually have to take the freak in thing to a dealer unless anyone has any ideas.
Spike0205 is offline  
    Reply With Quote Quick reply to this message
Old 05-03-2014, 03:04 PM   #6
Marde
Focus Addict
 
Marde's Avatar
 
Join Date: Jun 2013
Fan#: 115991
Location: Mesa, AZ
What I Drive: 2004 ZTW PZEV 2.3 ATX

Posts: 1,313
Points 1,595, Level 22
Points: 1,595, Level: 22 Points: 1,595, Level: 22 Points: 1,595, Level: 22
Level Up 95% Completed
Level up: 95% Level up: 95% Level up: 95%
Forum Activity 7%
Activity: 7% Activity: 7% Activity: 7%
FF Reputation: 11 Marde Great Standing Member
Buy-Sell-Trade Rating: (0)
Disconnect the electrical connector at the MAF sensor. Inspect the wiring in this area. Remove and clean the MAF sensor with MAF Cleaner or Carb Cleaner.
__________________
You've got to ask yourself one question: Do you feel lucky? -and could you really drive a Focus ATX Wagon?
Marde is online now  
    Reply With Quote Quick reply to this message
Old 05-04-2014, 04:31 PM   #7
Spike0205
Focus Rookie
 
Join Date: Apr 2014
Fan#: 155682
Location: Dillsburg, PA
What I Drive: 2003 Silver ZX5

Posts: 8
FF Reputation: 1 Spike0205 Good Standing Member
Buy-Sell-Trade Rating: (0)
Cleaned the MAF and the throttle body again. I noticed some moisture out of the exhaust. I put my hand over the exhaust pipe and notice hardly no pressure build up. I went ahead put it up on the ramps and noticed exhaust fumes leaking from the muffler. Could this be creating the code for the mass air flow? There is very little back pressure. I check the MAF connections for grounding and + voltage; they were all good.
Spike0205 is offline  
    Reply With Quote Quick reply to this message
Old 05-04-2014, 05:31 PM   #8
sailor
Crankshaft
 
sailor's Avatar
 
Join Date: Jun 2008
Fan#: 57268
Location: Williamsville, NY
What I Drive: 2004 Pitch Black ZTS 2.3 5spd.

Posts: 16,788
Points 12,025, Level 71
Points: 12,025, Level: 71 Points: 12,025, Level: 71 Points: 12,025, Level: 71
Level Up 94% Completed
Level up: 94% Level up: 94% Level up: 94%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 79 sailor Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Moisture out the pipe is normal until the whole exhaust gets hot (condensation of water in exh. gases).

If exh. flow doesn't seem adequate, have someone rev. the engine while you check the output. Flow should increase immediately with the RPM increase. RPM goes up & no proportionate increase in flow - you may have a plugged CAT. Revving it up & not getting much flow is typical of that.

Check for leaks toward the engine from the MAF, clear the code & see if it returns.
__________________
"Rubber Side Down"

S.R. #275
sailor is offline  
    Reply With Quote Quick reply to this message
Old 05-04-2014, 07:33 PM   #9
Spike0205
Focus Rookie
 
Join Date: Apr 2014
Fan#: 155682
Location: Dillsburg, PA
What I Drive: 2003 Silver ZX5

Posts: 8
FF Reputation: 1 Spike0205 Good Standing Member
Buy-Sell-Trade Rating: (0)
I let it heat up and tested the back flow. The exhaust heated up and had someone rev it up. It built back flow once heated, but I could hear the leak. Then I drove it and notice I could hear the exhaust leaking out the muffler when the engine faltered. So I seriously think it is the exhaust leak causing the faulted in power. Any thoughts?
Spike0205 is offline  
    Reply With Quote Quick reply to this message
Old 05-04-2014, 08:00 PM   #10
sailor
Crankshaft
 
sailor's Avatar
 
Join Date: Jun 2008
Fan#: 57268
Location: Williamsville, NY
What I Drive: 2004 Pitch Black ZTS 2.3 5spd.

Posts: 16,788
Points 12,025, Level 71
Points: 12,025, Level: 71 Points: 12,025, Level: 71 Points: 12,025, Level: 71
Level Up 94% Completed
Level up: 94% Level up: 94% Level up: 94%
Forum Activity 99%
Activity: 99% Activity: 99% Activity: 99%
FF Reputation: 79 sailor Excellent Standing Member
Buy-Sell-Trade Rating: (0)
Nope - only an exh. leak at the header can cause engine issues, & that's just because of the affect on the O2 sensors.

You were worried about the amount of flow, so I just mentioned a quick check for that to confirm no issues there.
__________________
"Rubber Side Down"

S.R. #275
sailor 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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



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

Forum Jump


All times are GMT -5. The time now is 02:29 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : 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 Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat