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Missfire and no throttle response when cold

Tiny
MARCONEIL
  • MEMBER
  • 2010 FORD BANTAM
  • 1.3L
  • 4 CYL
  • FWD
  • MANUAL
  • 109,378 MILES
When I start it in the morning its okay for about two minutes. Then it starts misfiring and having no throttle response, then it floods with fuel on all cylinders. Then it wont start until I remove spark plugs and clean off the fuel. Then starts with full throttle still running uneven. When I get to drive it feels like a severe flat-spot. It also has a bit of white smoke since the first flooding of cylinders.
Drain engine oil and replaced filter.

Replaced spark plugs
Cleaned idle up valve
Cleaned map sensor
Fuel pressure @ idle 2.2 bar
Fuel pressure @ drive 2.7 bar

Please anyone with any idea?

From South Africa
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Sunday, June 12th, 2016 AT 6:46 AM

5 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Any codes logged in the ECU? Scan and report any codes start here.
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Sunday, June 12th, 2016 AT 8:07 PM
Tiny
MARCONEIL
  • MEMBER
  • 4 POSTS
P0131 O2 sensor signal too low

I have replaced it. And cleared fault code. Its measurements also fluctuate as suppose to. Actual values
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Sunday, June 12th, 2016 AT 9:21 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Check general tune and check for vacuum leaks and exhaust leaks up stream from converter.
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Monday, June 13th, 2016 AT 2:39 PM
Tiny
MARCONEIL
  • MEMBER
  • 4 POSTS
Does anyone perhaps now the fuel pressure actual value?
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Tuesday, June 14th, 2016 AT 3:52 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,379 POSTS
We do not have technical info on this vehicle unfortunately.
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Tuesday, June 14th, 2016 AT 8:28 PM

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