5.0 so running rich (help!!!!!)

Topic: 5.0 so running rich (help!!!!!) (Read 12035 times) previous topic - next topic

5.0 so running rich (help!!!!!)

February 10, 2014, 05:09:31 PM

Ok so I just replaced the ignition module in the distributor now its running really really rich that its stalling out I've replaced the map an idle air sensors an I'm lost any ideas on what could be my proplem oh an I have new injectors an new fuel pressure regulator car was running great till I changed The ignition module in the distributor??? Help please

5.0 so running rich (help!!!!!)

Reply #1 – February 10, 2014, 10:22:19 PM

Run codes.

fuel on a sd setup is basically controlled by map sensor and o2's. if you have a vacuum leak, it will run rich.

5.0 so running rich (help!!!!!)

Reply #2 – February 10, 2014, 10:35:46 PM

Quote from: Haystack;428731

Run codes.

fuel on a sd setup is basically controlled by map sensor and o2's. if you have a vacuum leak, it will run rich.

+1

Also I'm guessing you pulled the distributor to change the pip? If so and the problem didn't start till you messed with the distributor than it's probably a timing issue. Check to make sure you put the distributor back in the proper orientation.

5.0 so running rich (help!!!!!)

Reply #3 – February 11, 2014, 01:37:17 AM

Replaced map already an timeinv is fine i can disconnect vacuum lines off intake an car rpm will pick up and run better like its starving for air I'm lost after replceing PIP car ran great for a few weeks then one morning on way home from work I didn't know if I was going to make it home car didn't want to idle an barely wanted to run at all

5.0 so running rich (help!!!!!)

Reply #4 – February 11, 2014, 01:54:45 AM

I hate to say it, but something is broken. if you don't want to fix it, just say so. otherwise, id think about running codes. but it doesn't bother me if you don't fix it.

5.0 so running rich (help!!!!!)

Reply #5 – February 11, 2014, 08:06:46 AM

Yea I want to fix it I wouldn't have posted this thread if I didn't want to fix it

5.0 so running rich (help!!!!!)

Reply #6 – February 11, 2014, 09:19:11 AM

maybe , just maybe your motor movement walked a vac line off the intake.,,
just a thought.

pull codes with a paperclip.,, see diy link below.

i am not confident in aftermarket PIP or aka~ pick up module or aka~hull effect module.

when you set the timing, with the car off your suppose to remove the jumper connector at the dizzy (little black two wire jumper with the yellow wires)
now you start the car and set the base timing.
shut car off
plug jumper back in
start car and let it learn then shut down.
start car and let it learn again,, then start messing with the fine adjust idle

if you didnt fool with the jumper during timing adjustments, at least this helps and you can do it right... just speculating so let us know.

5.0 so running rich (help!!!!!)

Reply #7 – February 11, 2014, 04:00:42 PM

http://www.youtube.com/watch?v=9QSiS6wf7oU&feature=youtube_gdata_player

seriously, it takes less then 2 minutes. first time running codes on my 87.

I am about 95% sure.your missing a vacuum line, have a bad gasket or missing something. really, if you had good vacuum only to the map sensor, and it didn't idle high, you shouldn't have any problems.

In the off change that your timing is off, the computer will tell you.

Like I said, your car. I don't care if.it gets fixed.

5.0 so running rich (help!!!!!)

Reply #8 – February 17, 2014, 08:11:15 AM

Sry its been so long been working a lot lately going to pull codes this weekend an get back with y'all then an thanks for everyone's help an ideas hopefully I can get the bird running this weekend really miss driving the ole bird

5.0 so running rich (help!!!!!)

Reply #9 – February 17, 2014, 09:09:04 PM

My timing was way off on my car and it didn't pull any codes, just so you know.

Run your codes and see what pops up, and let us know. we are all here to help. good luck.

5.0 so running rich (help!!!!!)

Reply #10 – February 21, 2014, 10:34:51 PM

Thanks going to pull codes on Sunday morning going to try my best to get the car running right if it takes all day
And a couple quick questions
Is there a thread about removing (DIY) the smog pump
An whats the lb of vac specs for these car or is there a thread for that to thanks to everyone for there help will have codes to post on Sunday

5.0 so running rich (help!!!!!)

Reply #11 – February 23, 2014, 09:24:36 AM

I wouldnt remove the smog,, jsut short belt it and be done.
yes....
cap off the two vac lines that go to the two individual round vac actuators and spare them back.
remove the smog tube from the passanger exhaust, shove a bolt and jbweld and clamp down there
along the rear of your heads there is a tube that transitions around the pass side engine bay, cap that off with something/plug it up.
remove belt
undo hose clamps for smog plumbing
remove the stuff now free
unbolt smog pump unit from the engine
now you can get to your pass spark plugs easier~!
leaving the vac lines and smog solenoids behind the strut tower still in the game will trick screw the eec in thinking the system is still there.

call me if you have trouble.

i just short belted mine and kept the whole system.
with the pully riding on a shaft that has a bronze bearing / bushing.... once upon a time i couldnt keep a belt on my old 3.8L.
finally found out that after the engine was warm,, the smog pully was binding up and throwing my belt.

imagine not knowing where to start knowing your belts wont stay on,, and how much troubleshooting it took to finally figure this out~!!

this plus one other problem caused me to find this board for what feels like amost a lifetime ago.

5.0 so running rich (help!!!!!)

Reply #12 – February 23, 2014, 09:26:34 AM

your looking for about 19lbs of vac at idle and your needle should be fairly steady.

vac would drop out as you goose the throttle.
vac would show attempts to maintain presure as you gently increase throttle.

5.0 so running rich (help!!!!!)

Reply #13 – February 23, 2014, 12:03:11 PM

In the of

5.0 so running rich (help!!!!!)

Reply #14 – February 23, 2014, 02:08:24 PM

Tom, I assumed the computer would know, but your right it doesn't. I updated this in my post. my 86 cougar wouldn't pass emissions and threw no codes. got a light on it and it was timed at 30*. Dist bolt was loose. can't believe it didn't ping or anything. retimed at 10* and flew through emissions (went from 450ppm hc to 75).

A vacuum leak to either the map sensor, or the hoses on the vac tree will make the car run super rich because it won't have enough air to the map sensor. been there and done that on almost every car I've owned.

If o2 aren't reading right, it will show up in codes.