opti ???
#1
opti ???
can i take off the cap without removing the water pump? i have a high rpm stumble (top of 3rd at 4000 rpm) and i have all good fuel stuff, pump, filter and injectors. so i have moved on to ignition, new coil, wires, plugs and now i want to check the opti, i just had a cap and rotor kit put on a year ago it mabey has 3000 miles on it! i am getting very frustrated and i have to figure the problem out. any help would be great!!
#7
WD
#10
The knock-sensor will not cause a miss. When knock occurs and the sensor responds, timing is retarded in the PCM. Performance is impaired, but no miss occurs as a result.
One common problem with LTs is for the Opti rotor screws to vibrate loose (I've see that many times). Not easy to check, but one of several things to check.
WD
One common problem with LTs is for the Opti rotor screws to vibrate loose (I've see that many times). Not easy to check, but one of several things to check.
WD
#12
The knock-sensor will not cause a miss. When knock occurs and the sensor responds, timing is retarded in the PCM. Performance is impaired, but no miss occurs as a result.
One common problem with LTs is for the Opti rotor screws to vibrate loose (I've see that many times). Not easy to check, but one of several things to check.
WD
One common problem with LTs is for the Opti rotor screws to vibrate loose (I've see that many times). Not easy to check, but one of several things to check.
WD
that would make a stumble?? it is not a miss it is a stumble.
#13
my friend just downloaded tunercat for me and we are going to check some stuff out tonight, he has never done much with a lt1 but he knows tuning stuff, this is his car
http://video.google.com/videoplay?do...arch&plindex=0
http://video.google.com/videoplay?do...arch&plindex=0
#14
You need a scanner (TTS DataMaster or FreeScan), not a tuning program. You need to find the problem before you can determine if it can be fixed by a tune, or if its a mechancial or electrical problem that needs to be repaired.
#15