Advice on Hard Cold Start
Ok, I'm at wits end with this issue and I'm running out of things to try to fix it....
Car = 92 Sentra SE-R, all pretty much stock as far as the motor goes.
Problem = Car long cranks on cold/cool start (the colder the longer). Most of the time it will just keep cranking until I push the gas pedal down. When I do push the gas pedal its struggles a short time to finally starting. Once started it runs perfectly fine. Restarts seem to be fine as well. I have no other symptoms but the cold start issue. It Runs perfectly fine.
A Little Story of Issue = Car has been sitting since about November-ish over winter and such since i live in the North East. When the car was parked this issue did not exist. It only started when I woke it up this Spring and has been doing it since.
Things Attempted and/or Less Than 2 Years Old =
Things in Blue were done while car was in fine working order prior to waking it up this Spring, Things in Green were done this season already while troubleshooting.
NGK Plug Wires
NGK Laser Plat Plugs
Fuel Filter
Intake/MAF Cleaned
IACV / AAC Cleaned
Stabil for Gas Tank over Winter Slumber
MAF / IACV / AAC recleaned
Throttle Body Cleaned
Fuel Rail Pulled to check for Leaking from O-Rings (None)
All Injectors firing properly
Fuel Pressure Gauge Installed After the Filter Showing 3 Bar Pressure and Holding for almost about 2 hours after turning off engine
TPS / MAF showing correct voltages
Stock FPR Tested working fine
Water Temp Sensor reading proper resistance
All the EGR shit removed testing for Vacuum Leaks (None)
I've put a couple full tanks of gas through her so it's not old gas
ECU Swapped (No Change)
I will update this as I continue troubleshooting, below are some videos. The 2 in the day time were done one right after another. As you can see the more I try to start the closer it gets to firing up. The video at night I added a shot of Consult to see some of the sensor parameters. I also say "Gas" the moment I hit the gas pedal so you can see the effect it has on getting it started.
I'm losing my mind trying to figure this out. My next thing is to borrow an IACV and AAC off a friend to test and see if theres any effect changing those.
Car = 92 Sentra SE-R, all pretty much stock as far as the motor goes.
Problem = Car long cranks on cold/cool start (the colder the longer). Most of the time it will just keep cranking until I push the gas pedal down. When I do push the gas pedal its struggles a short time to finally starting. Once started it runs perfectly fine. Restarts seem to be fine as well. I have no other symptoms but the cold start issue. It Runs perfectly fine.
A Little Story of Issue = Car has been sitting since about November-ish over winter and such since i live in the North East. When the car was parked this issue did not exist. It only started when I woke it up this Spring and has been doing it since.
Things Attempted and/or Less Than 2 Years Old =
Things in Blue were done while car was in fine working order prior to waking it up this Spring, Things in Green were done this season already while troubleshooting.
NGK Plug Wires
NGK Laser Plat Plugs
Fuel Filter
Intake/MAF Cleaned
IACV / AAC Cleaned
Stabil for Gas Tank over Winter Slumber
MAF / IACV / AAC recleaned
Throttle Body Cleaned
Fuel Rail Pulled to check for Leaking from O-Rings (None)
All Injectors firing properly
Fuel Pressure Gauge Installed After the Filter Showing 3 Bar Pressure and Holding for almost about 2 hours after turning off engine
TPS / MAF showing correct voltages
Stock FPR Tested working fine
Water Temp Sensor reading proper resistance
All the EGR shit removed testing for Vacuum Leaks (None)
I've put a couple full tanks of gas through her so it's not old gas
ECU Swapped (No Change)
I will update this as I continue troubleshooting, below are some videos. The 2 in the day time were done one right after another. As you can see the more I try to start the closer it gets to firing up. The video at night I added a shot of Consult to see some of the sensor parameters. I also say "Gas" the moment I hit the gas pedal so you can see the effect it has on getting it started.
I'm losing my mind trying to figure this out. My next thing is to borrow an IACV and AAC off a friend to test and see if theres any effect changing those.
Last edited by speedricer
on 2016-07-10
at 08-27-59.