Start up after exhaust install

Any more information? Did you refit all the O2 sensors correctly and install minicats on the rear O2 sensors? Check Engine light on? Any codes?

You have to expect noxious fumes coming out your exhaust pipe (with test pipes and no cats), but does it smell rich? Any leaks around the secondary air pipes?

 

Disconnect battery then go through ECU parameter reset. Read manual. It's very clear on how to reset engine parameters. Good luck

 

I see no issue for resets of anything..

the car does not know you changed exhaust parts.. and you put 02 extenders with wool.. ( which ive done in the past and worked fine) now running mini cat spacers
the car should idle as it was previously..

I suspect there is something else happening etc..

 

FWIW , not knowing exactly how rough the idle is now, makes it difficult for an opinion. ( Slight miss that is now more noticeable with less restrictive exhaust or a flat out miss in 2 cyl , for example )

As for the smoke , if it is a brand new exhaust, some smoke and odor would be expected ( burn off ) both of which should go away after a heat cycle.

I hope it sounds the way you wanted though, hard to dislike Tubi!

S

 

Check for a vacuum leak around any of the intake tubes. Wonder if something did not go back together just right.

 

Shouldn't be a change other than sound.
Something is unplugged, like maf, O2, maybe a spark plug etc

 

You did something wrong when you installed the new exhaust. There are quite a few connections that can accidentally be wrong when you are messing with the exhaust mufflers and bypass pipes like that. Off the top of my head...

1. O2 sensors mixed up
2. bypass valve vacuum hose
3. TCU connections mixed up
4. thermal couple sensors connections
5. air injection hoses
6. spark plug wires and coil connections

Just go back and check them methodically, one at a time.

and if all else fails, go back to basid... fuel, air, spark

 

There is no parameter reset for an OBD II car. He said it's a 96, so OBD II.

 

if I recall correctly.. the 02 sensors only start to read AFR at a certain heat level..
meaning they are non functional until car is at full temp.. so that could be reason for no codes..

however the fact that it was not on properly still could have triggered the bad idle..

 

The O2 connector is loose, or the sensor is not screwed in tight?

 

that won't cause any codes.

 

If I remember correctly, the capristo bypass valve is reverse logic from the Ferrari valve and requires different vacuum plumbing. Did you do that?