running lean fwdp stage 5

[Force Fed Mopar]

Yeah if you have a 3-bar map the DRB map-related readings will be useless.

[bakes]

your are not running a Cat are you?

do a leak down test i had bad Ex. valves / seat screw me around like this 4 years ago

[spiro440]

your are not running a Cat are you?

do a leak down test i had bad Ex. valves / seat screw me around like this 4 years ago

No cat.
Leak down? Only have 3500 km on the build. I hope nothing is srewed up. I'll do that tomorrow too.
Cant' see why it would run lean, but ...?
It all started with a f.....ing vacuum hose that popped off the the intake manifold!!!!!!!!

[Force Fed Mopar]

Maybe the fpr isn't increasing the pressure with boost?

[spiro440]

Maybe the fpr isn't increasing the pressure with boost?

One of the first things I checked. It follows the boost for every pound. ( see post #10)

[spiro440]

Changed the fuel filter...... no change?!?!!!!!

[Force Fed Mopar]

Did you continue to run it hard after the line popped off? Maybe you burned the exhaust valves or something.

[spiro440]

No, when it popped off the car sputtered like crazy and I limped back at 20 mph to the pits and popped it back on and the car's idle dropped let it run to cool off and shut it.
I started looking at it again this morning went for a joy ride and decided to go gaz it up since it was empty, and now it missfires at 15 lbs.( i didn't even stop the car!) Hope it's just bad gas, but then again it usaully pings! Maybe a bad coil or something. Will empty the tank, refuel and see, then change coil and see, and then ..... .
Wanted to do a leak down, 3 kids to tend too will return to it later.

[ol"blue]

Well found my prob,adj cam gear backing it self 2 mark - set it back and car runs like a champ.hope you find the prob or maybe this helps either way gl.

[spiro440]

That's great,
checked that at the beginning (post #7). I will go back and check again and everything else as well.
Thanks

[spiro440]

Did you continue to run it hard after the line popped off? Maybe you burned the exhaust valves or something.

your are not running a Cat are you?

do a leak down test i had bad Ex. valves / seat screw me around like this 4 years ago

Did leak down #1: 2%, #2: 2%, #3: 4%, #4: 5%. Pressure used 100 psi for test.

Well found my prob,adj cam gear backing it self 2 mark - set it back and car runs like a champ.hope you find the prob or maybe this helps either way gl.

Double checked.

Will continue. Eventually I will get it. Got 2 months before SDAC!!!!

[Force Fed Mopar]

Maybe an intake gasket leak?

[bakes]

also if you Wb sensor is in th down pipe check for any air leaks into the exaust post turbo.

[turbovanman²]

What's the compression?

Did you replace the fuel filter yet? You keep saying you will but never do,

I damaged my motor blowing off a vacuum line, leaned out and I pinged it,

[spiro440]

also if you Wb sensor is in th down pipe check for any air leaks into the exaust post turbo.

That's an idea. Car does not sound like it used to. Maybe I'm paranoid

What's the compression?

Did you replace the fuel filter yet? You keep saying you will but never do,

I damaged my motor blowing off a vacuum line, leaned out and I pinged it,

Didn't take compression. My gauge is broken. Will have to get a new one. Did the leakdown instead.
For the filter.... post 46
I sure hope I didn't hurt it, put to much money into it.


I closed the gaps on the plugs to see if that would change the missfiring issue (.030). No change. Just an extra test before dumping the fuel and changing the coil.
Car runs good until 15 psi and then still missfures.

Will report back. Pretty busy for next few days but i will try to put in a little work.

[shelbymonster]

That's an idea. Car does not sound like it used to. Maybe I'm paranoid



Didn't take compression. My gauge is broken. Will have to get a new one. Did the leakdown instead.
For the filter.... post 46
I sure hope I didn't hurt it, put to much money into it.


I closed the gaps on the plugs to see if that would change the missfiring issue (.030). No change. Just an extra test before dumping the fuel and changing the coil.
Car runs good until 15 psi and then still missfures.

Will report back. Pretty busy for next few days but i will try to put in a little work.

i did have couple oil filled coil giving out on me before , and they do missfire after 3000 rpm , i went with a later coil after that and never had a problem after that

[spiro440]

No progress!
Dumped all the fuel and changed the coil........ still missfires.
Will change the Hep tomorrow.

So far did:
Checked fuel pressure
Checked fuel pressure rise with boost
Checked fuel pump (flow and pressure)
Checked baro. for leaks
Changed MAP
Changed TPS and verified 100% signal at full throttle
Changed fuel filter
Checked all vacuum lines
Checked timing
Checked cam timing
Checked adj. cam if slipped
Did a leak down test

Once all this was done I decided to turn up the fuel pressure to not run lean and figure it out before I get a faillure. Once figured out I guess it would run rich. (Safer)

Fueled the car up and now it missfires,
Changed fuel
Changed coil
Reduced spark plug gap

Any other Ideas I maybe missed?

[168glhs1986]

Did you say you verified computer was fine? How about putting in a Stage II cal and a 2 bar map, grainger it up to 18 psi and see how she runs?

[spiro440]

Did you say you verified computer was fine? How about putting in a Stage II cal and a 2 bar map, grainger it up to 18 psi and see how she runs?

I have a s60 around. I had put it in to compare values of the sensors but did not take it for a run. I will do the swap and run it at 14 to see what gives??? and then 18.
I have nothing to loose.
I will put the new HEP first and then the s60 and report back.

[turbovanman²]

Maybe I missed it but when did it start misfiring?