I was going to go with Mac mids with ORP for my winter project. I figured since im going to run that CC306 cam, getting the exahust out of the motor is key. So I was browsing LT's, and I decided to look into the Jet Hot Long Tubes. I went searching here and found http://www.fbodycentral.com/catalog/ that they make them available with all the emission connectors. So will this mean with 02 sims I will be able to keep all my emission equipment? Becuase It is very important I dont throw a code when I pull up for emissions on my 97 OBDII car.

Anyone runing the JetHot's with the AIR/EGR/O2' hookups? If so, did they all function properly? And who has the best price for them?

I allready did a search, and it didnt help, cause many people dont have to take emissions,and they didnt get the extra emission hookups.

Thanks in advance,
Mike

 

Yes, and they all work fine.

 

Mine work just peachy.

 

Same here man you won't have any problems.

 

hey thanks alot fellas. And who has them for the best price? Looks like im going to get them concidering I can get them for only 50 bux more over the MAC's.

Oh and should I run collector exstenshions, if I plan to run a true dule?

 

I have a '96 TA (OBD2) and recently installed a set of Jet-Hot LTs with the emissions hookups. As far as the install everything hooked up fine except, for my '96, I had to purchase some metric adapters to connect the AIR connections on the headers to the AIR pump lines. That's not an issue now as Jet-Hot sells these adapters along with O2 extensions and being that you are a '97 you'll probably need them.

Now, on to the problem I'm encountering. After installing Jet-Hot LTs w/emissions on my '96 TA with factory OBD2 programming, I'm now getting a "P0400 - EGR Recirculation Flow" PCM error (DTC) when cruising on the highway in 6th gear. The error doesn't get thrown unless you're cruising in 6th or OD on an A4. After much research on this forum and elsewhere, it turns out that the headers (or any high-flow header for that matter) reduce exhaust backpressure to the extent that the EGR can barely function. Unfortunately, unlike OBD1 equipped vehicles, the OBD2 PCM periodically checks the EGR function/flow when cruising in 6th gear or OD. At that time it will detect the lack of backpressure powering the EGR and throw the error code above. Fortunately you can have the OBD2 PCM reprogrammed (MadWolf, PCM4Less, etc) to prevent this error from being thrown. This problem doesn't appear to hurt performance, it's just annoying and a PITA to keep reseting the PCM to remove the error code and kill the SES light. This is a common problem for those individuals that install high-flow headers with emissions hookups on OBD2 vehicles, and sometimes even on OBD1 vehicles. The odds of you having this issue after install of a high-flow emissions capable header, since you're OBD2, are probably near 100%. Plan on having the PCM reprogrammed to get around the problem (which may or may not pass the emissions test; consult MadWolf, PCM4Less, etc).

Reference: http://web.camaross.com/forums/showt...ighlight=P0400

EDIT: Also, all of my EGR controls are working correctly (EGR valve, etc) so I know the problem I'm seeing is not because of a fault EGR valve or vaccum leak.

 

just wanted to throw in that the problem above also happens on OBD1 cars exact same symptoms. And it can happen on stock exhaust and everything too, so it isnt really a fault of the headers.

 

BitCypher, I wish I had read your post yesterday. I just dropped off my 97 to get another EGR since they are under warranty for 80,000/8yrs but mine is doing that exact thing since a high flow offroad pipe instead of the dual cats. Thanks for the tip. Hopefully, I don't have to pay too much when I pick up the car since now it will be my fault.

 

True and good point, it is not a fault of the headers but rather one of the benefits they provide: reduced backpressure. Unfortunately EGR relies mostly on exhaust backpressure to function, hence the relationship to this issue. I've never seen this happen on an otherwise stock exhaust except for an actual bad EGR vavle (which a TSB covered on a few model years). Now, I've read on here and elsewhere where individuals have removed/gutted their catalytic converter(s) and seen the same problems mentioned above. Also, some individuals have added single/dual cats to their header setup and they provided just enough back-pressure to eliminate the EGR error from popping up. I guess it's a shot-in-the-dark who has the problem and who doesn't.

I think one reason this issue pops up is that most, but not all, emissions capable headers power the EGR off of a single primary tube (usually #8) whereas with the factory manifold configuration the EGR is connected at a point in the manifold where it's powered by all 4 exhaust pulses. This makes me think that if, for emissions purposes only, the header companies changed the header design so that the EGR was powered by a small tube connected to all the primaries then the flow may be sufficient to power the EGR without a DTC code popping up - but that is just my speculation without much thought of the consequences.

 

TY for the info. Thats alot of information I didnt know. Im still gunna go for them. Hopefully this problem wont cause me to fail emissions. I could always slip on some cats if it does. But ty once again. I will have Speed Inc do the dyno tuning, ill ask them about it, when i get it done.

So where can I get these Jet Hot LT's for the best dam price in town lol.

 

So am i gunna be able to beat $550?

 

you just missed a GP on jet hots for $499 plus shipping.

dont forgot you need the ypipe if you are going to run a catback.
$180-225

 

dont forget, you might not pass smog with long tubes, be sure to check and see for your area. even with the smog stuff on there, they move the cats so you will fail if they have a visual.

 

true duals will not pass either.

 

Well when I took my emissions this year, all they did was have me pull up. They went and tested my gas cap. Then grabed a Scanner type hand held unit. They then plugged it to the input under the steering colume. Then the dude moved my car over the dyno rollers, and told me I was done. So I got 2 years till I got to go back. But If they keep doing that, then I dont see how I will fail, if I throw no codes.