Straight Pipes

Has anyone ever managed to delete the cats and replace them with straight pipes on a EURO 5.2M F355? Just curious because I couldn't.

 

I get a SDL first blinking than solid and bank shut down. SDL is right from the start with cold engine. I installed Technistrada dummy loads but still no good. I installed angled mini cats O2 sensor extenders no good. Checked the wiring from ECU going to CatECU and measured voltage seems fine. I never got a CEL light and the bulb is in there and working. I've never been able to read any fault codes though I'm not sure why? I can read all sensors using Car Scanner app., or the Torque pro app. but never managed to receive any fault codes? Only managed one time to clear the `SDL light just to find it lit again the next time I started.

 

It is an EURO spec Car so it doesn't have a bypass-cat.

 

Yes that's what I believe also. I had already a blinking SDL upon start with my cats installed so I was thinking a faulty CatECU. Instead of spending money on a new CatECU I thought I will spend it on straight pipes(always wanted to try them) and get the Technistrada dummyloads and be done with the anoying SDL. Only thing I can come up with is an intermittent contact/ broken wire in the harness from CatECU to mainECU?

 

No

 

The blinking SDL I had already but it never gave any problems. But when I install the straight pipes the SDL becomes solid and shuts down a bank. Why? When the catECU's are no longer inline and replaced with dummyloads still the SDL becomes solid and bank shut down. So the dummyloads don't work (feeding 1,5V with a battery also doesn't work) I have my cats installed back on the car now with the blinking SDL but no solid SDL so no bank shutdown. I gave up.

 

There is no logic explanation I can think of. Maybe the 5.2M EURO spec F355 have a different mapped Main ECU? That's why I asked if anyone had managed to install straight pipes on a EURO spec 5.2 M F355?

 

You said what? ;-)