I have 97 galant es 2.4 4g64 motor. we started about two weeks ago having a stumbling problem on engine thottle up. When in driving condition the motor stumbles till in hits 2000rpms then is fine but upon shifting (autotrans) it does the same stumble
I have changed the plugs wires and distributor cap along with the button I have also replaced the TPS. *Still have the problem.*
So, today I tore down the thottle and cleaned it along with the enitire intake (carbon build up at the injector areas) ((and ERG valve was also built up)) cleaned all of it with carb/injector cleaner. After assembling everything *Still have the problem* If anyone can help me out. I'm stuck holding the hood with one hand and scraching my head. (also connected actron OBD ll code reader and got no codes)

 

Try swaping the maf w/ a known good one?

 

is their a way to test those? and wouldn't the car shut off if it was bad?

PS born in C'ville P.A. tranplanted to NC

 

Assuming c-ville is collegeville lol.

Try unplugging the maf and driving it.

 

lol actually connelsville but did live in reading well west reading

unplugged it no luck acted way worse. but on a lighter note (my future uncle) decided to tear the throttle body apart to find if it was the problem only to damage the IAC motor circuit ((not one u can buy)) -- this one was made by a company called mikuni corp so if any one has info on it

 

Last time I heard the name Mikuni was concerning a Nissan a friend was fixing up... dunno if that helps. Obviously a Japanese company/distributor who provided parts to various manufacturers.

They do still have a website:

http://www.mikuni.com/

 

yeah seen that site also seen a few others been searching everywhere. I guess they also make harley and other bike carbs and EFI's but no luck here in NC finding any place won't be able to ask a dealer till Monday. Thinking thats my best bet.

 

Don't forget your local junkyards as well as the national used part sites... I hope you get it all fixed soon and have a great 4th of July holiday next week. (Assuming NC = North Carolina).

 

ty have a good 4th also (north cacalaka lol ((carolina))

 

its going to have nothing to do with the throttle body or the airflow meter.