mikeyl
NAXJA Forum User
- Location
- yorba linda ca
i'ved searched and have not found quite this problem. whan i'm crusing along at around 70-75mph i tach out at close to 2600rpm. it seems that mostly at this value i start getting rpm drops of around 200rpm. it stutters, vehicle bucks at bit and rpm comes back up. at first, if i was reved above that or below it it ran ok. idle is good. i put in a new tps today but same problem occured. at one point i put the tranny (aw4) into third and was running it at around 3400 rpm. this worked well for awhile. but it it too started to stutter the same way eventualy. and it almost seemed that if i got close to the 75mph in this gear that's when it started. up untill that , i would have said rpm but this was too coincidental. does the speed sensor affect any systems that could cause this or is it just a dumb coincidence? i'm running a bored out tb on a 2000 manifold with a banks header on a 91' and it had been running fine up untill about a week ago.
any ideas as to where else i should look?
any ideas as to where else i should look?