John Ashley Exhaust from UK (header for 09+ ecotec engine)

After 2 weeks I finally put my ecotec header on my 09aveo hatch. The headerhad top quality, nice beaded welds and inside the collector was smooth with no puddles- a sign that this guy knows his stuff. The header had to be slightly modified at the bottom to fit the flex pipe. My hatch sounds a little louder with a nice deep rumble( although I have a lil exhaust rattle under load at about 3000-3200rpm). The car seems to have gained some good #s in the mid range. I have yet to redline it as its only been on for about 5 miles.

Link to his site: http://www.jaex.co.uk/

And now for the BS.... Tried to take the car for a spin and the gas pedal seemed worthless, the car idles up n down from 1000 to 250 and wants to die. I had cold engine hesitation before but sea foam patched it for a quick fix. I finally got a CEL but Im thinkin it is a O2 or cat code. I am hoping to scan in the next day or 2. This maybe a previous problem coming to life or a header install problem. Perhaps an exhaust leak in/ or betwwen the flanges?? But heres my question- if the leak is after the 1st O2 shouldn t there be no stalling/severe hesitation. Trouble shooters n opinions r welcome

if the flow is different, then it might be learning, is the o2 sensor in the collector or is it in a single section of tube?

The O2 is in the primary (nearly the stock location) and the other right before the flex pipe(nearly stock). I am wondering if a fouler extension(Ive got vibrants adjustable version for about $30) would help on the 2nd O2. Im gunna have to pull the codes- maybe the exhaust shop banged up the second O2??? Would the 2nd O2 affect drivability?? How long should the re learn take? I have already pulled the negative terminal for ecu reset.

Thanks for the input, Rabbit, Ur point of "re learning". My car left me stranded yesterday evening. I went out this morning unhooked the battery,remo ed my jet chip, let it sit for a half hour, fired it up n let it idle for about 15 minutes, drove it for about 20 minutes with no problems. Perhaps the ecu couldn t re learn with the chip in. If all goes well after a week or so Ill pop the chip back on and see. Right now Im just hoping for no CELs other than a cat code. FOR THE LAST 20 MINUTES THIS IS THE SINGLE BEST MOD DONE ON MY AVEO. Lets hope it stays all good.

Pooh man can you snap a picture of the motor with the header? Did you us that john ashey header you sent me a link for??

This is for the US spec ECOTEC found on 09 thru11 aveos the Euro engine code is Opel's Z16xer/Z18xer. If you have the 08-aveo I beleive the engine is the Z16xe or xep. What I did was e mail John Ashley thru his sites "contact us" I sent pictures of my exhaust gasket with a tape measure beneath for reference and it was close enough to pull the trigger. The head studs n ports matched perfect but the bottom of header flange I modified. The car ran like s*it till I pulled the negative terminal off of the battery and did the idle air control valve reset that I found on here. For the last 2 days Im all good wnjoying my daily commute. This is the best mod on these motors the entire exhaust is restrictive. Im not trying to start a great debate but it nearly seems like a stock b13 se-r( almost ). Now to try to work off the CEL- Ive got emissions every 2 years in IL

http://www.jaex.co.uk/

This thread REALLY needs pictures!!!

Wait till I m outta work....

http://www.aveoforum.com/forum/attac...3-07-05_67-jpg

http://www.aveoforum.com/forum/attac...-06-54_325-jpg


hope I did this right -a should be 2good pics

Yea that's a lot different then My 2008. Id love to do some performance to my car but they don't make any thing for it. I got some lowering springs I need to put in for it. lol I need to just cut it up and put Honda motor mount in it for a b swap or something.

That would be quick but if u dont find a header port the one u got n if Im right ur precat bolts on. Take it off n replace with test pipe. I ve also debated on a 35 shot of nitrous.

Option 2for Boomer: 09+ ENGINE ECU N HARNESSES, 1.8 FROM A SONIC CRUZE OR ASTRA. SORRY BOUT THE CAPS IM FEELING LAZY. Should be a bolt in affair

Quote:

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Originally Posted by BoomersAveo

Yea that's a lot different then My 2008. Id love to do some performance to my car but they don't make any thing for it. I got some lowering springs I need to put in for it. lol I need to just cut it up and put Honda motor mount in it for a b swap or something.

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Is the same exhaust gasket, i think it fits it too...

I redline my Aveo too often, I had something like this it would make the problem worse. Truth be told, I need to downgrade back to having a muffler so I stop abusing this engine!

I'm looking on his site and can't find a header for an aveo. Only thing I found for a 1.6 is for a Peugeot. Any ideas what it's listed under?

It's the Vauxhall header. Z16XER for the '09-11.

http://jaex.co.uk/index.php?route=pr...&product_id=52

I dont see a place for the o2 sensor?

I contacted them about a manifold for my E-Tech II, waiting a response. After exploring the option of modding a Honda header, it would have been more cost effective to just have one made for the Aveo. At least for me, I have the skill but no ability to fabricate anything at the moment.
Will keep you updated as far as 2008 and under.

I see one issue with the setup, the O2 sensor is mounted on one tube and should be on the collector to read the gasses from all 4 cylinders, I could see that throwing some funky codes