Fuel pump voltage

[NorCalTurbos]

I disconnected the o2 it's doing the same thing it ran for maybe 10min got rougher than with the o2 I turned it off and it won't start now tag it's warm do I check the plugs now or what to see if they are really white or over fueled ???

 

[NorCalTurbos]

I have a denso o2 should I get the delco or Bosch does it matter ?

 

[standupjskiguy]

I don't think the ox sensor is the problem brand shouldn't matter.
You said the temp sensor is new also so I guess that is not it.
Wait until it cools off then pull the plugs and see how they look.
Maybe an injector is leaking?

 

[standupjskiguy]

It was running right at one time with this setup right?

 

[Jerryl]

Fwiw . . . Had a brand new coolant sensor that was bad. Pull the plugs and verify injector harness at egr to make sure they are not burned or pinched. You also need to post tps and maf info.

 

[NorCalTurbos]

I don't think the ox sensor is the problem brand shouldn't matter.
You said the temp sensor is new also so I guess that is not it.
Wait until it cools off then pull the plugs and see how they look.
Maybe an injector is leaking?

Injectors and o rings new

 

[NorCalTurbos]

It was running right at one time with this setup right?

Yup it ran ok for a while before this started

 

[standupjskiguy]

Your going to have to pull the plugs and see if it is running rich or lean and are all the cylinders the same?
I had a 92 Buick 3.3 that had one bad injector. It's coil measured 4 ohms instead of 11-12. It did not release
fuel to that cylinder so it had a miss. When the engine warmed up, the ox sensor saw the engine was lean
from the one injector not providing fuel so the ECM richend up the other injectors. When I pulled the plugs,
five were black and one was white. The white one was the bad injector.
Maybe one of yours went bad, maybe it has dirt in it.
What are the stock injectors and could it be 50lbs injectors are just too big?

 

[NorCalTurbos]

Your going to have to pull the plugs and see if it is running rich or lean and are all the cylinders the same?
I had a 92 Buick 3.3 that had one bad injector. It's coil measured 4 ohms instead of 11-12. It did not release
fuel to that cylinder so it had a miss. When the engine warmed up, the ox sensor saw the engine was lean
from the one injector not providing fuel so the ECM richend up the other injectors. When I pulled the plugs,
five were black and one was white. The white one was the bad injector.
Maybe one of yours went bad, maybe it has dirt in it.
What are the stock injectors and could it be 50lbs injectors are just too big?

The injectors are new so I'm checking my harness now then I'm gonna try and set the timing I'm wondering do i need to pull the cam sensor when I turn the crank

 

[NorCalTurbos]

Your going to have to pull the plugs and see if it is running rich or lean and are all the cylinders the same?
I had a 92 Buick 3.3 that had one bad injector. It's coil measured 4 ohms instead of 11-12. It did not release
fuel to that cylinder so it had a miss. When the engine warmed up, the ox sensor saw the engine was lean
from the one injector not providing fuel so the ECM richend up the other injectors. When I pulled the plugs,
five were black and one was white. The white one was the bad injector.
Maybe one of yours went bad, maybe it has dirt in it.
What are the stock injectors and could it be 50lbs injectors are just too big?

Should I pull them now or let it run a lil bit first also I've hear the timing can be set and then I heard it can't be I remember getting the car started a while back the first time it was pig rich I had to shut it off after a couple mins to strong to bare I took the cam sensor out flipped it 180 set the crank TDC on compression it ran great smell was reduced but not perfect do u think my problem is due to the timing

 

[standupjskiguy]

Maybe just run it a bit, to warm it up to help get the plugs out.
I think the ignition timing is controlled by the computer and the cam sensor is used to set the timing of the injectors.
But I'm not 100% sure.

 

[NorCalTurbos]

Thanks everyone that had input on this, as of now its running better I did the 25 ATDC popped the cam sensor back in an it wouldn't fire up until I got the sensor dialed in but now it runs after it warms up now it's time for April Spools

 

[NorCalTurbos]

Fwiw . . . Had a brand new coolant sensor that was bad. Pull the plugs and verify injector harness at egr to make sure they are not burned or pinched. You also need to post tps and maf info.

The whole time it was the timing thanks for your help I checked everything on the list then I set the crank and adjusted the cam sensor a bit