I have a'90 240 with the KA24E. I've Recentlydone the head gasket, timing chain set, and new distributor (hitatchi). I have good spark, good air flow, fuel pressure, and fuel in the rail, but the injectors don't seem to be firing. The car starts off spraying ether in the throttle body but won't stay running. tested my ecm on a known running '90 240 and that car started right up, so my ecm should be fine. I've never heard of all 4 injectors going bad at once. I've already spent around $1,000, and 6 days under the hood to get this thing running with no luck. I'm stumped on this one. If anyone has {any} ideas they would be greatly appreciated.