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Author
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Topic: Starting to get rough idle
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03SVTPower
CAFords OG
Member # 518
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posted
 
 
Started noticing a little bit of a rough idle the other day when i started the car up. I let'er warm up for a few minutes and noticed it.
i do need to replace my cats again and have an exhaust leak, could this contribute to my slight rough idle? ![[Frown]](frown.gif)
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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corpsedub
New Member
Member # 6401
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posted
could be the FRPS starting to go.if you dont have a spare, might be a good time to order one and have it just incase. it's a good thing to have handy in the glove.
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w140ax'd snake
Posts: 5 | Registered: Jan 2006
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92stangLX
¯
Member # 3252
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posted
When was the last time you tuned the car up? Any engine codes?
EDIT: I would fix the exhuast leak.
[ September 10, 2007, 12:49 PM: Message edited by: 92stangLX ]
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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03SVTPower
CAFords OG
Member # 518
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posted
quote:
Originally posted by 92stangLX:
When was the last time you tuned the car up? Any engine codes?
EDIT: I would fix the exhuast leak.
Has about 6500 miles on the motor since the rebuild. ![[Confused]](confused.gif)
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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03SVTPower
CAFords OG
Member # 518
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posted
quote:
Originally posted by corpsedub:
could be the FRPS starting to go.if you dont have a spare, might be a good time to order one and have it just incase. it's a good thing to have handy in the glove.
What is the FRPS?
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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corpsedub
New Member
Member # 6401
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posted
quote:
Originally posted by 03SVTPower:
quote:
Originally posted by corpsedub:
could be the FRPS starting to go.if you dont have a spare, might be a good time to order one and have it just incase. it's a good thing to have handy in the glove.
What is the FRPS?
Fuel Rail Pressure Sensor
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w140ax'd snake
Posts: 5 | Registered: Jan 2006
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93PONY
Mr. Valve Events
Member # 60
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posted
FRPS failures are not uncomon.
Exhaust leaks near/upstream of the O2 sensors will cause the O2's to read lean, & the computer will richen the mixture which can make a rough idle.
Also check for vacuum leaks. Sometimes under boost a line will pop off.
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www.advancedenginedevelopment.com
SCT dealer
Dynotuning
(916)715-7569
Posts: 4266 | From: Fair Oaks, CA | Registered: Nov 2000
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