MAF sensor

[95red]

ok i have a 95 Mustang GT auto, i have a very noticeable hesitation when at WOT, when im driving regular it is pretty much normal but when i get on it, it will sit there and hesitate for as long as i hold it down then when i let up and then put it back down slightly it will go, i have already replaced the following: fuel filter, had fuel pump checked, had cats checked, put a whole new throttle body on it because the mechanic that i brought it to said that at idle the tps was reading 1.3 and at WOT it read 1.3, so i put new throttle body on with tps sensor, now i find out thats not the problem either. the car has did this ever since i bought it , it is making hate my 94 mustang bad, i know its not that expensive but i need help PLEASE!!!!!!! oh yeah and its not my tranny already had that checked

 

[Cyiberwulf]

Dude, thats the same problem that I've been trying to diagnose for about a week now on my '95 GT as well. The only addition to what you stated is that my stang wants to hesitate when first starting off from say a red light or such making me 'baby' the gas pedal until the engine catchs up with what I want it to do..

I've already tried to clean the MAF sensor with Q-tips and such and was looking towards those other things you tried, so I guess I'll wait and check back here to what others say as well.

 

[95red]

yea i dont know i hope someone can help use out??? anyone lol?

 

[95.0mark]

im having a very similar problem as well with my 95 gt. sometimes it dosent do it others it does...and my check engine light comes on and gos off....well today i had my codes checked and pulled a 181 and 189...lean condition at partial throttle in the 1 and 2 bank. ive been told both o2s dont go together so it may be maf or vacuum leak?

 

[95red]

EXACTLY my check engine light goes on and off too? im not good with motors or anything so if u figure it out you should post back please, did u by any chance take out your screen on your maf because i did maybe thats whats wrong with it but i thiink it was happening before that i cant remember for sure tho? post back

 

[95red]

do you both have automatics?

 

[95.0mark]

no i have a 5 speed, and i dont think my screen is out, but ive never opened the airbox assembly to find out, but i plan on cleaning my maf. my car is bone stock.

 

[95red]

my car is stock also i think we are having the same problem but yours is a manual so thats why your having a hard time getting off the line? but yea get back to me when u find out what it is thanks

 

[Cyiberwulf]

Mine's an automatic. I pulled the codes off the unit and got:
code 172 - ox sensor lean, right side.
code 628 - Excessive converter clutch slippage.

Probabily I've got a bad ox sensor, but what is the clutch thing ??? :damnit: