Cleaned EGR.. now runs worse

[artgod33]

Back Story: 171, 174 (lean bank 1 and 2) and 401 codes (low voltage EGR)

Last weekend spent the weekend removing the upper intake manifold and took off the EGR. Din't look to bad but cleaned it up and replaced the gasket onthe EGR and upper intake manifold.

Started it up... no change. Bad idle, small backfiring etc.

Went to drive the 2 miles home from, my buddies garage... sputtered and died completely... couldn't get it up a small hill.

Luckily he was just washing up and heading to myhouse for dinner so when he drove by he towed me into a church parking lot (his RAM pickup towing my Ford Ex lokoed like a car commercial!)

Car never started all week.

It actually got worse!

This weeekdn dropped the tank thinking the fuel pump was the problem (new pump in August... thought the intake may have been clogged) and everything seems fine.

I just dont know what to do at this point. Spending $150 on a new fuel pump when I am justy guessing if its bad seems rediculous... I am tired of throwing money into this truck and having it not get better. I just dropped $700 on exhaust cats and 02 sensor work and $300 on tires before that.

What could be causing these problem?

 

[artgod33]

After writing this out it made me think.

What would cause low fuel pressure?

clogged pump? no

Clogged fuel filter? Just replaced

Low Voltage?

The 401 code is EGR low voltage also... can these be related?

Vaccuum leak? From where though? nothing seems obvious.

 

[Turdle]

Check all the fuses--you might have blown the hego circuit fuse while messing with the wiring?

Are you certain all vacuum lines are attached?

if you are still getting a check engine light, there may be new codes stored which will help troubleshoot this.
Are you certain you have low fuel pressure?

 

[artgod33]

Check all the fuses--you might have blown the hego circuit fuse while messing with the wiring?

Are you certain all vacuum lines are attached?

if you are still getting a check engine light, there may be new codes stored which will help troubleshoot this.
Are you certain you have low fuel pressure?

When I took it to the dealership to have the codes pulled they checked the pressure at the rail and it was only 10psi.

No CEL light... yet.

I coudln't even drive it to Autozone to check them in the conditino it was in last week.. right now its still in parts withotu a gs tank.

 

[Turdle]

Check the fuel pressure regulator vacuum line for a gas smell. If you can.

 

[artgod33]

Check the fuel pressure regulator vacuum line for a gas smell. If you can.

I changed the Fuel Pressure Regulator already.

it was running bad before... and running bad after.