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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Lurching when car hot, FP fluctuates

  • Thread starter Thread starter rpmdds
  • Start date Start date Mar 8, 2004
R

rpmdds

New Member
Aug 3, 2001
30
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0
Yarmouth, Nova Scotia
Mar 8, 2004
#1
  • Mar 8, 2004
  • #1
This just started happening last summer on a real hot day. When the car is cold, it runs great, steady fuel pressure and no lurching at part throttle.

When you have been driving the car for 15-30 mins, the lurching at part throttle occurs. It coincides with the FP gauge bouncing wildly. At 1/2 throttle or above it steadies out and the FP also flattens out at a normal 40-45 psi.

Does anyone have any ideas?

2001 Bullitt
Vortech V2 blower
Walbro 225lph fuel pump
Lightning MAF
MAFTerburner
NGK TR6 plugs
Tuned at SHM
 
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