Have 96 blazer 4x4 4.3L. Just got this thing back on the road after over a yr of being parked. replaced the spider assy , and had to replace the intake gaskets do to bad water leak.also had to repair/ replace the abs wires on both sidesand other wires runningfrom the engine compt down the left sidewheel well area,mydogs chewedthem up trying to get at rat or something that climbed in the engine compt area from the weel well.
The state inpection sticker has been out of date for a while and i cant get thru the insp till the obd II shows that all sysytems are ok. i drove it today about 120 miles and still am showing 2 system monitors that are incomplete. i am using the actron pocket snanner. the monitors that are incomplete are the o2 htr and the evap. the ck engine light is off andi am showing no trouble codes yet.Need to know how many more miles i need to drive to get these to reset or show a fault. or do i need to start looking into problems with the O2 htrs or evap sys?. any help would be appreciated. thanks

 

Check out the GM drive cycle as posted on OBDII.com for the sequence that must be followed to complete a drive cycle. You may have to do this a number of times to get the hard to complete monitors.

 

thank you very much, just printed it out and will do tomorrow, boy did i ever waste some gas..lol..
take care

 

ok the blazer passed insp today, found out in tx if emissions test is required you can have up to2 systems not ready and still pass test. well i was downto one. was kinda happy at 165,000 itis still going. now all i have to do is work out the bugs..lol... lil miss here and there and ruff idle.
but it runs for now so offi go to fix my other sons 96 gmc truck.. think o2 sensor is bad . same engine 4,3 . the off to fixanother sons 80 k10, bad starter...... as my name implies...lol..
2many broke...
thanks again