Sr20det floods when trying to warm start. Help. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

BNASTYs13 · 04-27-2013, 02:19 PM

I have a type x black top swap in my s13 and it always cranks up first try when it is cold. It runs great aswell. I can drive it around for hours no problem. If i park to go eat or something it will not start back up for an hour or so like its flooded.

I know It is flooding because if i unplug all of the injectors the car will crank up and idle for a few seconds on the fuel thats in the cylinders. It has good spark aswell. I could pull codes but i have a J4 ecu so there is no diagnostic screw on the ecu. I do not have nissan consult.

When a car is first started in closed loop the ecu gives it a little extra fuel. I wonder if my ecu is bad and is stuck in a cold crank setting when i am trying to crank the car when it is warmed up?

I put a new coolant temp sensor on it but that didnt help at all. still the same exact problem. I wish i had a local person with a j4 ecu i could try out.

zombiewolf513 · 04-27-2013, 02:26 PM

If you figure it out please post it up. I had the same problem before I just rebuilt my SR, couldn't figure out what it was.

04-27-2013, 02:19 PM	#1
BNASTYs13 Zilvia Addict Join Date: Jul 2011 Location: NC Age: 37 Posts: 685 Trader Rating: (50) Feedback Score: 50 reviews	Sr20det floods when trying to warm start. Help. I have a type x black top swap in my s13 and it always cranks up first try when it is cold. It runs great aswell. I can drive it around for hours no problem. If i park to go eat or something it will not start back up for an hour or so like its flooded. I know It is flooding because if i unplug all of the injectors the car will crank up and idle for a few seconds on the fuel thats in the cylinders. It has good spark aswell. I could pull codes but i have a J4 ecu so there is no diagnostic screw on the ecu. I do not have nissan consult. When a car is first started in closed loop the ecu gives it a little extra fuel. I wonder if my ecu is bad and is stuck in a cold crank setting when i am trying to crank the car when it is warmed up? I put a new coolant temp sensor on it but that didnt help at all. still the same exact problem. I wish i had a local person with a j4 ecu i could try out.

04-27-2013, 02:26 PM	#2
zombiewolf513 BANNED Join Date: Mar 2011 Location: AZ Age: 37 Posts: 1,682 Trader Rating: (6) Rides Gallery: zombiewolf513 Feedback Score: 6 reviews	If you figure it out please post it up. I had the same problem before I just rebuilt my SR, couldn't figure out what it was.