bigjrocc

hello everyone i am having alot of problems with my ls. First lets begin with all the things i replaced which is the maf,fuel filter,ignition coils,and left O2sensor. and none of these things stopped the plan in which i am about to explain. Well first and for most my car has been stalling it cranks of up fine runs for few seconds or minutes then shuts right back off everytime i think i have the problem especially while searching here doing everything that the other ls guys have done i am having no luck i mean the car is mysterious to me cause you can be driving and it will slow down and shut off or surge or just coast i mean it is a scary feeling any ideas out there. pls help

PK_Celsior

iTrader: (18)

what year is your LS, and have you been keeping an eye on your rpms before it happens.

bigjrocc

its a 91 and no not at first but it seems to go find until it starts to idle then it just dies or surges back and forth

elcid69

sounds like a crank position sensor maybe going bad- if the car starts ok in the morning and dies out when its hot- this may be your problem

bigjrocc

ok ill try that one in the morning

bigjrocc

well i think i made an error i bought just the sensor on top of the actually body of the mass air flow sensor and the mechanic says he seems to think that the mass air flow body itself is bad. and the reason he says that is cause of something about the screens on there being bad or something is there any truth to any of that before i go out and buy the whole unit

Och

iTrader: (3)

I think your fuel pump might be bad.