Hi there,
Today, I went to restart my 2007 9-5 2.3T manual transmission combi (with stage 2 BCB ecu) after coming out of the store, and it cranked, fired, and immediately died. Tried it again, gave it a full accelerator pedal load, and after some hesitation down low, it fired into life. Sounds to me like the warm engine got flooded. No odd whining from the fuel pump, no hesitation on full throttle after this incident, and tons of new parts (listed below).
After I got home, I hooked up my tech II and scanned it at idle: attached are the results - they're all listed below since I could not find a forum thread that had an exahustive list of normal ranges for these parameters.
I have no CELs or DTCs. The only thing that's disconcerting to me is the low MPG, but it's winter and I have a ski rack on the car.
After reading the parameters and the above, please advise if my list of parts to check when the car is at the dealer next (soon, I promise) is too broad, too narrow, or if I'm forgetting anything. Thanks!
MPG: Before long idle: 23.4mpg after highway driving & around town. Minimal stress, maybe got to full throttle once on the 45 minute run. Ski racks on the car. Winter blend 93 octane gasoline. One passenger. 45-50 degrees F ambient temperature.
Tech II Readings:
-Jake
this top post is constantly updated with new readings and things to check, so that it may become useful for anyone in the same boat
Today, I went to restart my 2007 9-5 2.3T manual transmission combi (with stage 2 BCB ecu) after coming out of the store, and it cranked, fired, and immediately died. Tried it again, gave it a full accelerator pedal load, and after some hesitation down low, it fired into life. Sounds to me like the warm engine got flooded. No odd whining from the fuel pump, no hesitation on full throttle after this incident, and tons of new parts (listed below).
After I got home, I hooked up my tech II and scanned it at idle: attached are the results - they're all listed below since I could not find a forum thread that had an exahustive list of normal ranges for these parameters.
I have no CELs or DTCs. The only thing that's disconcerting to me is the low MPG, but it's winter and I have a ski rack on the car.
After reading the parameters and the above, please advise if my list of parts to check when the car is at the dealer next (soon, I promise) is too broad, too narrow, or if I'm forgetting anything. Thanks!
MPG: Before long idle: 23.4mpg after highway driving & around town. Minimal stress, maybe got to full throttle once on the 45 minute run. Ski racks on the car. Winter blend 93 octane gasoline. One passenger. 45-50 degrees F ambient temperature.
Tech II Readings:
- airmass/combustion: 148 mg/comb
- Coolant temperature: 183 degrees F
- Airmass/combustion calculated: 142-5 mg/comb
- Airmass deviation from calculated: 2-3%
- Mass airflow 4.1 g/s
- Intake air temp 104 degrees F
- Atmospheric absolute pressure 98.6 kPa
- Charge air absolute pressure 98.8 kPa
- Manifold absolute pressure 35.9 kPa
- Short term fuel trim .65%
- Purge adaptation -2.86
- Additive adaptation -.19 mg/comb
- Multiplicative adaptation 4.29%
- Injection duration 3.012 ms
- Injection end angle 380 degrees
- Charge air control valve 2/0%
- charge air adaptation -24.5%
- Idle speed deviation -5-11 rpm
- Canister purge valve 26.8%
- Fuel tank pressure -.273 kPa
- fuel tank pressure, filtered -.117 kPa
- Ignition timing 8.0 degrees
- Combustion detection cylinder 1+2 3960 μs
- “ “ 3+4 0 μs
- Knock cal 1 (likely never reset): 339 2: 225 3: 96 4: 87
- Misfire cal 1 (likely never reset): 795 2: 622 3: 773 4: 931
- Main relay voltage: 13.2V
- Airmass/comb. requested 150 mg/comb
- Airmass deviation 0-1%
- Engine power went from over 1,000,000 bhp (lol) quickly down to 0 (it’s at idle, likely doing calculations as I scrolled to the entry)
- No airmass trouble code detected
- No Lambda fuel cut
- No DTCs otherwise
- O2S1: between .1-.7V
- O2S2: .71V
- CPS (1.5 yrs old, genuine Bosch done at dealer)
- DIC (1.5 yrs old, Genuine Saab/SEM 3.7)
- Plugs (~2-4k miles)
- Throttle body (6 mos. old, Hella (OES))
- MAF (2 months old, OEM)
- K&N open air filter (cleaned & re-oiled days ago, I think properly)
- Battery (brand new)
- Battery cable (brand new)
- All grounds cleaned
- ECU wiring harness rebuilt
- New fuel pump (Spectra Premium, 7 months old)
- Vacuum system fully smoke tested, all lines new and bad o-rings/gaskets replaced (2 months ago)
- Edit 4/3/2020: Also now has proper ground nuts and two new O2 sensors
- Injectors (in case leaky)
- MAF (in case got oily after air filter recharge)
- MAP
- Plugs (for signs of flooding)
- Purge valve
- Coolant temp sensor
- Thermostat
- Fuel pump check valve
- Fuel pressure regulator
- CPS with a scope
-Jake
this top post is constantly updated with new readings and things to check, so that it may become useful for anyone in the same boat