No IGf is considered a miss by the ECU (no spark happened).Ĭode 14 should not stop the engine running. The ECU measures the time between these to determine if the igniter or coil is starting to fail. IGf is an echo of the back EMF from the coils negative wire. If so this points the finger at the ISCV :-D Will the car start and idle if you hold the throttle open? And try starting with "+B - Fp" jumpered with a bit of wire (no need to bypass relays yet). To summarise, try all the following things and post back when your done. So if a vibration on the road is causing something to not work, you can store the relevant error code for the faulty sensor. Like the stationary diagnostic it stores codes, however you can drive the car on the road and rev it up and down, (and I think turning on and off accessories). If your car has a T2 diagnostic pin, you can do a driving diagnostic. The ECU wil still be able to turn on and off the pump via the Circuit opening relay (Fc pin). Id find the fuel pump low voltage switching relay and bring the 12v feed to the fuel pump wire directly. Ive seen afr graphs over the years that show leanout when the relays switch from 8v to 12v and back. You can safely start the car with this jumpered, thats what its there for.īypassing that Fp low voltage relay is still debated. This will give the fuel pump 12v directly, bypassing the resistor that drops to 8v. If you are worried about your fuel pump being the issue, which I doubt it is, short out the B-Fp connectors in your diagnostic box. Idle Valve (ISCV) Cleaning, can help solve poor/erratic idle - Toymods Car Club On JZ motors and engines with that ISCV setup, a clogged ISCV will cause low/stumbling idle and hard starts. Your video clip shows the car not wanting to hold idle, but it fires up just fine! Get a video of the error code cycling 3 times. Start the car or do something until error code shows. Im pretty sure theres no code 44 in toyota world.ġ1 and 22 are the only same number double digit error codes.
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