So after replacing 2 starters yesterday, I went to button everything back up and take it for a drive. No go.

Engine cranks.
43psi at fuel rails
fuel at injectors (they are a two months old).
Spark at all 5 plugs.
No codes

Engine turns and seems like it wants to start a few times but mostly just turns over.

I'm thinking i must have missed re-attaching a sensor, but it all seems to be in place as far as I can see.

Any thoughts on what I might have missed?

Last started and ran this past Thursday before putting in in the garage

 

Ignition switch??

 

You need 4 things to run...

1. Fuel
2. Spark
3. Air
4. Compression...

 

Between Thursday and today you only did the starter work? If so, retrace your steps and find the vacuum line or connector you dislodged or forgot to hookup..

If you did other work, let us know what that was...

 

I have all 4.

1 - 43lbs at the rails. And fuel at the injectors.
2 - checked with plugs out and on the head all have nice bright spark
3 - ok... this one - i assume I have air since the butterfly valve opens and closes and the air filter is new.
4 - checked compression while plugs are out - all within spec +/- ~8 lbs across the cylinders

Is there something else I am missing?
Now what?

thanks

 

"Air" also means "vacuum". As gdog said, check for missing hoses. You didn't have the intake manifold off did you? If so, check that the bracket under the lower bolt near #5 isn't caught under the manifold.

 

If you had the manifold off, I'm going for lack of vacuum. Intake manifold not seated or a hose off.

Did you have the manifold off !!

 

I had a crank but no start situation with a Civic one time. I replaced fuel pump, distributor, plugs... but it ended up being 2 things that just so happened to gradually go out at the same time -- ignition switch & idle air control valve was stuck w/ carbon gunk.

There was a nice little diagram and chart to help me test the ignition switch for continuity. I haven't heard of many ignition switch problems with the 850, but I'd imagine anything is possible if people use heavy key rings. Try to see if you can find such a continuity checklist diagram/chart.

And the Volvo's idle air control valve/motor is rather large, unlike the Civic's.... so I'm not sure if it would completely prohibit the ability to allow the engine to FIRE. But anything's possible, I guess...

Just because you get spark sometimes doesn't mean a faulty ignition switch will always give you good spark.

I would highly recommend you focus on those two parts if you really can't find any vacuum leaks elsewhere.

 

You could try reading the plugs, also.

Perhaps one or more cylinders are not actually receiving fuel.

You've seen that "new" reman'd starters can be faulty, so perhaps even "brand new" injectors could be faulty as well?? Or perhaps you created a wiring problem with the injectors?

Or perhaps you've flooded all the cylinders by cranking it so much and not firing? Perhaps leave them open for a while to dry out, then put the plugs back in and try again??

 

If the injector relay is not working the fuel will not spray. Are the plugs getting wet?

 

No, Manifold wasn't removed.
Ignition switch checks okay.

Wasn't able to work on it last night.
Tonight - checking for vacuum lines
Plugs are getting wet - so pulling the plugs and letting the cylinder dry out - it may be flooded.

idle air control valve - need to check that. I have a spare lying around somewhere.

Could the CPS have an impact? I've had one go out on a stratus and it made it difficult to start and if you hit over 2k rpm it felt like it was starved for fuel.

 

If the CPS was bad you would NOT get spark or fuel.

The problem has to be air. You have compression, fuel and spark. Replace the MAF.