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1997 Toyota Corolla died suddenly and now cranks with no start
I've had it with a mechanic for a week they have confirmed spark , fuel pressure, and compression. However they don't know what the problem is. We have inspected the ECU and it doesn't appear to be faulty. We have also tried different distributors
I think my mechanic is no where as smart as scannerdanner.
the engine was running and then just sputtered and died when It first broke down they have been able to get it to run but I am not sure if it's with a external fuel source but I'm sure it is because I noticed they changed a hose to the intake. most likely because it's easier to spray into
I'm stuck with a parts changer mechanic and I got to fix this car on my own quick
These are two different ignition management systems Toyota used back in these ldays. Both use a dedicated ignition module but in one the spark timing signal(IGT : ignition timing) controls directly coil negative from the engine computer while on the other one this IGT signal is sent to the ignition module. The ignition module then controls the firing of the coil.
The IGF signal (ignition fail or ignition feedback) has to be created and sent back to the ECM, otherwise the injectors will not be activated.
If the car indeed starts on external fuel you may want to look at injector power, IGF signal and injector pulses.
The sputtering you experienced when the engine failed may also point to running out of fuel.
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