Lt1Powerz

iTrader: (1)

I am seriously considering deleting my cats altogether, will this throw a check engine light on my 95 california equipped z28? I have heard some people say yes and others say no. If yes how can i prevent that from happeneing without getting the computer tuned?

Thanks in advance.

lbfd48

We just took my friends cat off last week on his 97ta and it didnt throw the engine light, if this helps.

hitmanws6

iTrader: (20)

it will throw a check engine light. and why would you do this in cali? if you want more power get a highflow cat

JB_97ws6TA

iTrader: (6)

high flow cats are illegal anyways in Cali so if you are going to do it you might as well delete them, it will throw a code unless you have the rear o2s tuned out or get o2 simulators

z_speedfreak

iTrader: (3)

you might want to get one of these> http://www.frozenboost.com/product_i...4dc11f7f10267a

Lt1Powerz

iTrader: (1)

I dont live in cali and i dont have rear O2 sensors, so im good then right?

camar0corey

iTrader: (22)

yes......... stupid 5 characters required. Can't even answer with the simplest of answers.

DAVE00

iTrader: (10)

95' dude and OBDI so there is no rear 02's just a single pair - one on each side before the cat. Have u had your code scanned and if so what is it throwing? Typically the 02's go and need to be replaced. If your cat is truly clogged then get a new one and go with hiflow if you don't have to worry bout' cali emissions testing.

Lt1Powerz

iTrader: (1)

There was no problem to being with i just wanted to do my exhaust lol. I did it and now i realized stock muffler is not the way to go with no cats lol. Sounds good until high rpms then it sounds stock... I got a pair of chrome Z28 tips for free too, Retail price of 50-90 bucks FREEBIE. The shop i went to did my cat delete and tip install for 100 bucks. They are going to be doing my muffler for 30 when it comes in. Thanks for everyones advice and help. I will post a vid after i get y muffler on there!

Lt1Powerz

iTrader: (1)

Would deleting my cats make it run more like its missing? Its not missing but its jumpy at idle and at higher rpms it feels like its dropping power... Maybe a vacuum but what are the chances of me taking my cats off and haveing problems and that not being it?

If i reset my computer will it fix itself or will it go back to being a stock map?

spikester7878

iTrader: (1)

i got rid of mine on my 94 formy and havnt had any problems yet

Lt1Powerz

iTrader: (1)

Im still running like im missing an di replaced my wires and its like running sluggish now... What are the symptoms of a bad opti?

DAVE00

iTrader: (10)

Are you throwing any codes? Deleting cats by itself won't cause you to run sluggish or miss. Has to be 02's, Opti, Ignition Coil, ICM, etc... Scan it and let us know?

Lt1Powerz

iTrader: (1)

I have no MIL on so should i still check it?

DAVE00

iTrader: (10)

Always best to scan it anyway as you may have a burned out SES light - never know. Take your ICM and coil upto your local AZ or Advance AP and have them test them both (they can do it) and see if you have a bad one. Very common for the ICM to cause these issues.

Lt1Powerz

iTrader: (1)

Well i work for oreilly's so i can do it but its just kind of a pain to take it off lol. I will scan it though, thanks!

Lt1Powerz

iTrader: (1)

Well i was near a friend's shop today so i decided to throw my car up on a lift to see wtf is making it misfire so much... Well to no surprise i found that the number 2 cylinder's plug wire boot was torn at the opti. I replaced it many painstaking moments later due to the manifolds being EXTREMELY hot (not to mention i burned every part of my body on those stupid things)... When i got in the car to start it up it ran AMAZING! Now after it warmed up to operating temps, it started missing again... Any ideas?

gregrob

iTrader: (8)

Aaaahahhhahahahahahahhaahhaaa. Thats awesome!

Sig worthy

DAVE00

iTrader: (10)

Still get the ICM checked!!!! Also, how may miles on that Opti of yours?

Lt1Powerz

iTrader: (1)

Okay i will do that today, im not sure, if it was replaced when the motor was then its got about 70k on it?