I have an 09 MS3 that acts like the fuel pump resistor is bad but it has been bypassed/deleted by previous owner. Here’s a mod list & maintenance list:
Mods: (all done less than 100 miles ago)
BNRS3
Damond 3.5in intake
3port EBCS
FMIC w/ VTA BOV
GGP VTCS delete kit
Damond EGR delete
Damond PCV plate w/ VTA OCC
TurboXS catback/stock DP
Overspeed Injector Seals
Autotech HPFP internals
Basemap tune by Farhan @ Damond
Maintenance: (all done less than 100 miles ago except VVT-21k miles ago)
Oil change w/ Rotella 5w40
Motorcraft transmission fluid change w/ new fill & drain plugs
Coolant flush
Both front axle seals
Injectors cleaned & tested
New Circuit & Fuel Pump 2 relays
OEM Pressue Relief Valve
OEM Intake Manifold & Throttle Body gaskets
Purge Valve
Swapped back to OEM MAF from a Denso 604
Boost leak test checked out good, blew 30psi through system
3 Codes for EGR & VTCS deletes
Car starts up fine on cold start but runs lean LTFT numbers at +20 but comes down as engine is warming up. 420-450psi HPFP at idle. 14.55-14.85 AFR at idle. Runs for around 11-12 minutes then just shuts off & wont start until cooled back down (3 hours or so)
Did get a datalog (attached below) for the only logged drive I had after installing everything, 14 mile drive. (Had a previous 48 mile drive but forgot to log, a previous 14 mile drive where car died during drive the same way explained here) I was slowing down to come around a turn and when to throttle but had no response & car acted like I turned the key off and coasted to side of the road. Got a tow home. Overlooked everything, car started & mapped out a 14 mile route from my house & back & made sure to log this one. During the drive I had some throttle hiccups in 5th & 6th gears at light throttle, coasting at 55-60mph. Upon 14.1 miles car died again at 50mph & I coasted into my driveway. Farhan said the log looks like I have a vacuum leak (that I cannot find for the life of me). I’ve sprayed brake cleaner at all gasket points, boost leak tested, new purge valve & nothing has changed. All fuel pressures look fine until car reaches hot oil temps. I haven’t gotten the car to idle long enough to try & get another log nor a MAF CAL. Car has been a yard ornament for almost 2 months now due to me not figuring this out along with a couple other friends who are more automotive savvy than I am. Please send help lol
Mods: (all done less than 100 miles ago)
BNRS3
Damond 3.5in intake
3port EBCS
FMIC w/ VTA BOV
GGP VTCS delete kit
Damond EGR delete
Damond PCV plate w/ VTA OCC
TurboXS catback/stock DP
Overspeed Injector Seals
Autotech HPFP internals
Basemap tune by Farhan @ Damond
Maintenance: (all done less than 100 miles ago except VVT-21k miles ago)
Oil change w/ Rotella 5w40
Motorcraft transmission fluid change w/ new fill & drain plugs
Coolant flush
Both front axle seals
Injectors cleaned & tested
New Circuit & Fuel Pump 2 relays
OEM Pressue Relief Valve
OEM Intake Manifold & Throttle Body gaskets
Purge Valve
Swapped back to OEM MAF from a Denso 604
Boost leak test checked out good, blew 30psi through system
3 Codes for EGR & VTCS deletes
Car starts up fine on cold start but runs lean LTFT numbers at +20 but comes down as engine is warming up. 420-450psi HPFP at idle. 14.55-14.85 AFR at idle. Runs for around 11-12 minutes then just shuts off & wont start until cooled back down (3 hours or so)
Did get a datalog (attached below) for the only logged drive I had after installing everything, 14 mile drive. (Had a previous 48 mile drive but forgot to log, a previous 14 mile drive where car died during drive the same way explained here) I was slowing down to come around a turn and when to throttle but had no response & car acted like I turned the key off and coasted to side of the road. Got a tow home. Overlooked everything, car started & mapped out a 14 mile route from my house & back & made sure to log this one. During the drive I had some throttle hiccups in 5th & 6th gears at light throttle, coasting at 55-60mph. Upon 14.1 miles car died again at 50mph & I coasted into my driveway. Farhan said the log looks like I have a vacuum leak (that I cannot find for the life of me). I’ve sprayed brake cleaner at all gasket points, boost leak tested, new purge valve & nothing has changed. All fuel pressures look fine until car reaches hot oil temps. I haven’t gotten the car to idle long enough to try & get another log nor a MAF CAL. Car has been a yard ornament for almost 2 months now due to me not figuring this out along with a couple other friends who are more automotive savvy than I am. Please send help lol
