I been dealling with automotives long enough to say if you pay 130 dollars for a delco sensor your a dumb ****. lol If you go to a dealer to get parts your a dumb ****. Pardon my French. I only change my sensors when I get a used car and @50,000. I looked for some delco plugs and there are the same prices as Bosch. I been home mechanic not for fun but to save money and becuase all mechanics are ****ing ********. Its been like 6 years I been messing around with cars but truthfully I only do stuff when I need too which for me does not happen often with scheduled maintence and quality parts knocking on wood. Like I said I speak from driving and feeling not from what people say. I just got my Blazer becuase I need to tow but I love imports all day. I worked in motor pools for another four years too. Its too bad you do not have a blazer lol. I got me the 2dr too damn that thing is nice. I paid 3800 for a 97 blazer 4wd with 67000 on it. Immaculate and the best thing is the guy that I bought it from had all the paper work on the service like oil changes ever 3 months lol Like winning the lottery.

 

Well, that would exlpain why you love Bosch so much... All import (riceracers) love Bosch to a point that it would make you sick. I mean, come on, when someone lists Bosch plugs as a performance mod, you know something is wrong. Also, the six years you have been working on cars constitutes nothing for experience and says you are more of a backyard oilchanger than a mechanic. 90% of the people on this forum work on their vehicles because they enjoy it, or they enjoy modifying the performance of it... not because they feel garages are all ********. I'm not trying to rag on you, but you have to realize when enough is enough. The amount of knowledge that Swartlkk has on general, and advanced mechanics is incredible, and whatever he dosn't know he asks, and learns. I've been turning wrenches for at least 15 years, built countless projects...racecars, bikes, you name it, but the amount of knowledge he holds amazes me. He dosn't speak unless he his sure of his facts, and you really need to stop arguing about a damn o2 sensor. YOU WILL NOT WIN THIS ARGUEMENT...QUIT WHILE YOU STILL CAN.

 

THERE HAS BEEN NO NEED TO CURSE! None what so ever. How old are you, Seriously! This was a pretty heated discussion, allbeit one way, but your choice to drop down to the lowest level of internet trolls is despicable. Now onto your post...

Ok, so by your own admittance, you really don't know a whole lot about things you are passing off as the God's given truth.
Check.

I paid $72 for an AC Delco sensor (the total came to ~$160 for 2). They can be purchased online for ~$60+s&h, but I have an AC Delco retailer in the town where I work. The reason why I installed the Delco's instead of saving $30-$40 or even $60 to get the Bosch was because I KNOW for a fact that the Delco sensors will be good for a VERY long time. In all of my experiences (again MANY O2 sensor changes on MANY different vehicles - heavily weighted towards GM vehicles), an AC Delco O2 sensor will have a much longer life than a Bosch. As sensors age, they ALL gradually get more and more lazy in their response to changes in the air fuel ratio. If the Delco's start out more active than the Bosch and degrade at the same rate, logic states that the Delcos will last longer. I have seen this with my scans of my parents '97 STS. Now that's one sensor, but when I can read the same thing on other GM vehicle forums, it wasn't just an isolated incident.

The degradation of an oxygen sensor isn't a linear regression, but an exponential one. So in fact, if the sensor is say twice as active, when the lazy sensor fails, the more active sensor will still be pretty damn close to the activity level from when it was new. It isn't until later on in the sensors life that its activity starts to decline more and more rapidly. Simple knowledge of a closed loop fuel system lends itself to this theory (and that's all it is). As an oxygen sensor gets lazy, it can't change the IPW (injector pulse width) quick enough to keep up with the dynamics of the engine. So it will stay lean/rich longer before switching and probably over shoot. If the engine can see the AFR (air fuel ratio) leveling off before it reaches it's peak, it will start to dial back\increase the IPW, forecasting what will happen. A more active O2 sensor should waste less fuel in the rich to lean to rich cycle that happens many times a second in OBD2 ('96 & newer GM vehicles).

Better check my sig alittle closer. A Bravada IS a Blazer with nicer appointments standard. A Blazer can be optioned out the same as my Bravada, but a Bravada cannot be purchased as barebones as some of the lower trim level Blazers.

Check it out:

It's a Blazer with a different grill, bumper cover and different ground effects.

Speaking of driving and feeling... A lazy (but not to the point of throwing a code) O2 sensor will not exhibit any driveability concerns until it degrades to the point at which performance will suffer. After which you are sucked into purchasing a new sensor. As a further FYI, bad plugs can shorten the life of a good O2 sensor just the same as a bad O2 sensor can shorten the life of a good plug.

True, Bosch +4's cost approximately the same as the AC Delco Double Platinums. My concern is not with the price comparison, but with the fact that Bosch +4s have never, EVER been shown to have any benefit over conventional single ground plugs in independant testing. None of the multiple ground plugs that have been introduced have any merit, plain and simple. In the one case that I have had direct experience with them, I can say that the other 3 grounds straps do nothing but take up space. When BRAND new, they may have resulted in more available paths, but the spark will only travel to one strap per coil pulse. Sooner or later, one perferred path will develope and it will be rendered exactly the same as a conventional plug.

Ok I've been jumping back and forth in this small quick reply window for too lon

 

Melvin you should have swart posing for you instead of that chick. No offense swart. Plugs are not exactly a performance mod and do not know where you read I said that. It seems everyone is a race car builder in this forum damn. If I was a race car builder I would not be on this forum I tell you that much.

 

LOL, yeah right. Well, in your MPG thread, you state:
LINK to said quote.

upgrade = mod... NEXT PLEASE.

No we are not all race car builders, but I atleast dislike it when someone comes on making claims with no merit. Those claims may lead an unknowing new guy down a path of disappointment because there really is nothing to be gained from said claims.

Now why did you have to go picking on Melv? He did nothing to you. I'm the one you have a problem with and I'm right here! Don't try to pass off on the issue at hand because you lost any kind of respect you may have had.

 

Also in the quote, you state an oil and oil filter as an upgrade. Oil and filters ARE not upgrades either.

 

I like that sig but Like two doors more a little two big for me. I am sick of argueing about this subject with you. What type of oil you use.

 

You already know the answer to that. Mobil 1. For the change interval I use (5000 miles), there is absolutely no difference between Amsoil, Mobil 1, and (eek) Royal Purple, but that is a discussion for another debunk the myths thread of yours.

 

Upgrades are diferent from mods agreed yeah.
The stuff I did were upgrades to the truck. Useing regular oil rather than Royal purple is a upgrade right you are uprading to a better oil with better performance results. A K&N filter is a upgrade from having a no name oil filter that cost 2 bucks. More oil circulations and bigger cavity for more oil and stronger too. Now the plugs was an upgrade to stock 1.50 plugs. I am telling you what I have done and how it made it better what more merit is there. I would like to hook it up to computers and stuff but not that techincal.. I gained almost 5 gallons a miles just by doing what I did. Notice I did not say o2 as a upgrade.

 

I hope you use fully senthetic mobil 1. If not I am done talking to you.