Engine will crank but not start?

Hello, have you done any basic testing? Have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. Check for codes.

Start by checking fuel pressure with a mechanical gauge, if you don't have access to a gauge, remove intake tube and spray some starting fluid in intake, if engine runs a few seconds, then most likely you have a fuel problem like pump, clogged filter.

After a cranking episode, remove plugs and look for gas fouling.

This sounds like an ignition problem. Remove plug, attach wire and ground to valve cover bolt, crank engine, spark should be blue and "snap", anything else is considered no spark.

I would then change plugs and wires, but really the best approach is to have car scanned in live data mode to see if ignition problem is coil, ignition module, crank sensor.

It is also possible that the rich mixture is caused by a failed sensor (coolant temp for example). If bad, ECM will set a default rich mixture to protect engine from lean condition.

When the problem occurs, if it cranks good but won't start, have a helper it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. How long since a tune-up?

Some of these ignition systems, the ignition module may sit right on top of the sparks, in this case, remove the module, turn it upside down, use a spark tester in each boot, Either ground the metal part of spark tester to metal part of engine or use jumper to ground tester. Crank engine watch for spark.

Can you check for applicable trouble codes?

Welcome to the forum, with the key on, do you have voltage at the injector? The computer pulses the injector ground circuit, if it sees an rpm signal.

The pink wire at injector/s is voltage, goes hot with the key on. That is a fused circuit, I believe the fuel pump circuit gets votage from the same fuse. So if the fuel pump works, It sounds like the computer isn't grounding the injector circuit for some reaon. My first thought is no rpm signal. Possible crank sensor issue or wiring circuit, can't be sure.

Do you know what a fuel injector looks like? It's connected to the fuel rail, three cylinders for each bank and three injectors for eack bank, six injectors, overall. With engine cranking, can hear or feel the injector click? You might be able to use a screwdriver with a long shank, place the tip on the injector, place the other end of the shank against your head, close to your ear, see if you can feel or hear the injector click.

The injector has an electrical connector, to check for voltage, you can unplug the connector, turn the key on, no need to crank, use a testlite on the terminal for the pink wire. If the lite comes on, there is voltage at the pink wire.

I don't believe your injectors and dash lites are on the same fuse circuit. Depending on what dash lites your talking about, they may both use ignition feed to the fuse circuits, different fuse circuit.

Use a noid lite on the injector plug, see if it pulses, engine cranking? Sounds like the pcm isn't grounding the injector/s for some reason. If your fully obd1 compliant, check for trouble codes.

Welcome, If it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. Can you check for codes?