pre facelift vec c 2.2(z22se)problems

**denzilbud** · 21st April 2010, 19:28

i have just had a new downpipe and centre box fitted to my car,and ever since then its been running like a pig, poor fuel consuption,lacking power,poor idle ,ive cleaned the tb and blanked the egr all ready so its not them the car was running fine before exhaust was fitted,also i get the check safeguard and the car with spanner lights up then goes out,im going to buy position 1 and 2 lambdas and a coolant temp sensor and spark plugs could it be anything else any help would be great

**old cruiser** · 21st April 2010, 19:43

To be honest mate I was gonna suggest lambda sensor as there is every possibilty it's been damaged, as they are pretty delicate things,have you had a visual at the sensor that sits on the top of the manifold , it's quite easy to see if you look at the back there, could even the cable going to it that's damaged.
Cheers Pete

**rushy** · 21st April 2010, 20:12

I'd look at the O2 sensors mate. Vid had the same problem on his 2.2 after getting a new downpipe and it turned out to be the O2. It first went in because there was a bit of weld in the o2 thread, then it went again and turned out the tip was damaged. Think there about £60 each.

**denzilbud** · 21st April 2010, 21:04

cheers guys lambda will be my first port of call also ive been out and had a look position 1 seems ok nothing visuallsy wront but position 2 has been bodged its been cross threaded and in at an angle

**rushy** · 21st April 2010, 22:08

Originally Posted by denzilbud

cheers guys lambda will be my first port of call also ive been out and had a look position 1 seems ok nothing visuallsy wront but position 2 has been bodged its been cross threaded and in at an angle

That's the one them mate, I believe #2 affects fueling and that's exactly what Vids looked like.

**denzilbud** · 21st April 2010, 22:10

cheers for the help might have to get another down pipe if its threaded

**rushy** · 21st April 2010, 22:17

Originally Posted by denzilbud

cheers for the help might have to get another down pipe if its threaded

Vids was made by a zorst place, the plug didn't seat properly because of the little bit of weld in the thread. To fix it they just drilled a new hole welded a new nut on for the plug to screw into and then just blanked the old broke hole, so no need for a new downpipe.