Question about 2001 Chevrolet Blazer
If it blinks and goes away, it is a "random misfire" that culminates before the light begins blinking. Sustained misfiring will result in a code, and the light staying on. If the light blinks and goes away, the issue is intermittent. Your problem usually occurs under acceleration or heavy load. The issue can often be solved with new spark plugs, though it could also be dirty injectors. The injectors on that vehicle are infamous, however I have been able to fix your problem with repeated use of highly concentrated fuel system cleaner. I use at least 3 times the recommended concentration of whatever cleaner. People rave about Sea Foam. I have used it and it works -- though I can't say whether it worked better than other brands I have used. I have owned 3 Blazers and 2 S-10's, including my current 2001 Blazer LT.
Posted on Jan 13, 2013
Testimonial: "I replaced the spark plugs, Ign wires, Dist cap and rotor put cleaner in the tank but it didn't help. I will try the cleaner again if that don't work I will replace the injector. Thanks for the help"
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Posted on Jan 02, 2017
Code -P0146 - o2 circuit no activity detected,
Bank 1 senor 3
Bank 1 is going to be where number 1 cylinder is at,
It's going to be the very last o2 sensor on the exhaust pipe, check make sure it's connected, if it is more then likely bad sensor.
Posted on Jun 23, 2010
Start with the simple and replace the gas cap, and see if the check engine light goes out after a day or so. Post me back the DTC codes just to make sure it's not the EVAP purge valve on the intake manifold by the ignition coil.
Thank you for using fixya and good luck
Posted on Jun 03, 2010
Testimonial: "I replaced the gas cap and it seem's to have worked"
SOURCE: 2001 chevy blazer has power,
It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, Try a spare key that is newer or used less. The pins wear down and so do the keys causing security fail. 2nd trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shutting down while running, im sorry i have no quick fix... If anything on this page helps you, please remember to comment or give me a thumbs up on the myfixya sight so i can have a better rating to help more people on this. Thanks
Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks. If you do buy this, please purchase it thru this link. The cost is the same, but i get credit for the sale and im trying to earn my money back, as you will be able to do if you buy fron NewRockies and join the free affiliate program. Thanks
----- http://newrockies.ca?ap_id=judd0081 ----- With this fix, you can take that whole Vats, passlock, passkey system out of your car all together. Good info on both sites.
It works for:
Any GM or Isuzu Vehicle with VATS or PASSKey or PASSLock security systems.
If your car has the chip in the key or in the lock cylinder, then you can save it with this Full Bypass.
2003-2007 Hummer H2
1994-2003 Grand Prix
1996-2005 Grand AM
1994-1998 Trans Sports
1996-2002 Trans Am
1991-1996 Park Avenue / Ultra
1991-1996 Roadmaster Estate Wagon
1982-1990 Electra (all models)
1991-1993 Delta 88
1994-1997 Cutlass Supreme
1991-1996 Custom Cruiser
1995-2005 Monte Carlo
1994-1996 Caprice/Caprice Wagon
1995-1996 Impala SS
1997-2005 Malibu Classic
1985-1996 Fleetwood Brougham
1994-1999 Deville Concours
1997-1999 Deville D'Elegance
1994-2002 ElDorado Touring
Posted on Feb 20, 2011
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