idle problems / start problems/stall problems
 

New fpr f pump a year or 2 old fuel filter not to long ago mass air flow cleaned 2 months ago fixed vacuum leak today and I explain more in the vid I put it on YouTube I did not no how to upload it to here

https://www.youtube.com/watch?v=Esj-...e_gdata_player

I'm thinking MAF or Crank sensor. Is the car stock? Access to HP Tuners or Tech 2 by chance? Check exhaust connections between head and O2 sensor as well. You may have an exhaust leak making the O2 read lean when it is actually not lean in combustion. O2 thinks your lean and adds fuel, you go rich and it pulls fuel, oscillating idle will ensue if that is the case for sure

Crannk sensors are 2 months old and Maf is factory I clean it once a month

Not trying to thread jack here, but you should pop in my vacuum question thread, let me know what you think on my situation.

When did this start? Or have you been doing all of the above chasing this issue?

Delete

Replaced Cuz they were old and 2 days ago now I hear a loud hissing noise from under my intake Mani the top one and I've read it sleepy mine reads usually 20 or 23 I thought it was normal

The car was running fine but started hard then few days later thus happened runs like crap sounds like I have a built motor Lol but my AF/r reads 11.5 to 11.7 when I put it to the floor and stays and usually before this it jumped allover but now when I let off it drops and hits 20.0 and my gauge starts blinking saying I'm at20.0 and then when it sits for 15 to 20 min it takes 3 times to start vacuum is now 25 at idle just went to George Webb's for dinner ran fine for a few min then started cutting out then went on an back road it started to sputter and I gave it hell put it to the floor and did about 70 let off and idled in nuetural till the stop sign idled fine for a few seconds put it in drive then it started acting up again ima get another idle air control valve and ima get another fuel filter ima flush out the gas lines if I can figure a way out and then run some 89 threw it and maybe some Lucas fuel cleaner worked well in the winter and ima pull the fuel rail and blow it out and check out my injectors see if that gets me any where

Whats the a/f at idle?

Whats its fluctuate between? Mine hits.... 14.1-15.7ish at idle.

13.7 to 15.4

Could it be a clogged cat?

Im thinking a sensor...?

My thoughts are, tps, iac, maf... Do cheap/free fixes first. Start by cleaning maf with maf cleaner.

I believe a bad maf makes for hard starts.

Tps and iac can cause idle issues.

you hear a loud hissing noise under the intake? why is it hissing?

Idk sounds like an air leak but ima tear it apart and look

Everything your saying says leak after the MAF man. Unmetered air getting in somewhere. How's the pipe between egr and manifold? Can of brake clean is in order at this point. Fire it up, spray around intake with brake cleans until you hear the engine idle up on its own and you'll have found your leak

Idk read codes today

1- cyl 3 miss fire (go figure always miss fires)
2- multiple random miss fires
3 cool fan relays( I wired my fans up never worked even with new relays)
4 couldn't tell me
Tune up was do e last winter even a new plug on cyl 3 2 months ago all gapped the right way and everything checks out I just don't get it it is confusing me :/

And I will try that here in a bit just hot home and I'm full of metal dust and such lol

well i tried your idea and no leaks but now it just started doing it when i start it up and let it idle for sale 5 min ut starts to idle hard and starts chugging with real bad lack of power and blows out blue smoke (unburnt gas) and smells lol but it stalls when i am making a turn sometimes to idk what it is if i had the money i would rebuild the whole dam thing :/ and get a new body to

Got a way to scan your IAT sensor running? Sounds like the car "thinks" it's much colder than it really is if you are not finding a leak. Like said above, the TPS or MAF could be doing this too man. Be nice to see a scan of it. Know anyone with HP Tuners? You can scan and save the log without having to put credits on it, and would be the best for us to see what it is doing if possible

no hptuners and i did scan it il post a pic