Hey friends, hope you can help find what the real issue is with a friend’s Camry (200K mile).

Symptoms were stalling at intersections, low idle. Car now will not start. Here are the parts that have been checked / replaced:

- Engine cranks freely, not a battery or starter issue (both new)
- EFI relay in engine bay is working (swapped with horn relay and both relays functional)
- Fuel pump, filter, and screen have been replaced and can hear fuel pump while cranking engine
- Crankshaft position sensor has been replaced
- Camshaft position sensor has been replaced
- There is fuel at the fuel rail, but can’t measure pressure (have no tools for that)
- Have not been able to detect spark at the plug, but that was before replacing above sensors

Have not yet..
- Replaced fuel pressure regulator or fuel dampener
- Replaced circuit opening relay
- Replaced EFI relay next to ECM (is there one?)

Other symptoms
​​​​​​- I cannot get my OBD-II scanner to connect to the ECM. Just displays ‘Connecting...’ and never gets a reading. One shop (dealer) told him the ECM was bad.

My friend has already put $3000 into this taking it to various shops and only paid $1500 for the car. Trying to replace things that are fairly low cost and easy to replace but this has got me flummoxed.