Help! Cylinders flood with fuel on start!
I have just bought a JDM EG4 Civic SiR, with B16A. It has been set up to run in production circuit racing. Which means, very little has been modified, except a P30 ECU with JUN tables (possibly modified further by the previous owner).
Anyway, the car recently went to a dyno and lots of niggling problems have started. 1st, vtec isn't cutting in, but we are pretty sure there is a wiring problem to the vtec solenoid. But the car was running ok at this stage.
But now the car won't even start because the cylinders are filling up with fuel within a few seconds of trying to startup. The engine doesn't fire probably because it is flooded (yes, there is spark).
We first noticed the problem when fuel started leaking out of a bad weld in the headers (yet another problem to fix ... grrrrr!).
With the plugs pulled, we tried turning the engine over. A towel was placed over the plug holes, but there was enough fuel squirting out of the plugs to push the towel away, and squirt a couple of metres into the air.
The computer is no longer showing any CEL codes, but prior to resetting the computer, it was showing 21 and 3. The 21 is obviously the first (VTEC activation) problem. Could the 3 (some sort of MAP sensor failure) cause the overfueling? On startup?
Could the computer be f***ed?
Any suggestions why the computer may be instructing the injectors to pump in so much fuel at start?
TIA,
Richard
Anyway, the car recently went to a dyno and lots of niggling problems have started. 1st, vtec isn't cutting in, but we are pretty sure there is a wiring problem to the vtec solenoid. But the car was running ok at this stage.
But now the car won't even start because the cylinders are filling up with fuel within a few seconds of trying to startup. The engine doesn't fire probably because it is flooded (yes, there is spark).
We first noticed the problem when fuel started leaking out of a bad weld in the headers (yet another problem to fix ... grrrrr!).
With the plugs pulled, we tried turning the engine over. A towel was placed over the plug holes, but there was enough fuel squirting out of the plugs to push the towel away, and squirt a couple of metres into the air.
The computer is no longer showing any CEL codes, but prior to resetting the computer, it was showing 21 and 3. The 21 is obviously the first (VTEC activation) problem. Could the 3 (some sort of MAP sensor failure) cause the overfueling? On startup?
Could the computer be f***ed?
Any suggestions why the computer may be instructing the injectors to pump in so much fuel at start?
TIA,
Richard
Thanks, but I'm in Sydney Australia.
Anyway, I don't think it's the injectors. If I have the ignition on, i.e. the fuel pump running, then the injectors don't squirt fuel. It's only when I try and turn the car over that the problem starts.
Anyway, I don't think it's the injectors. If I have the ignition on, i.e. the fuel pump running, then the injectors don't squirt fuel. It's only when I try and turn the car over that the problem starts.
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