test pipes help

[nissan 350z kid]

I got a set of Kinetix test pipes and my check engine light is on. how do i get that off. i was told if i disconnect my battery i will have to go to nissan to get a radio code for my radio to work, is this true.

Thanks,Niko

[rmezz13]

you will probably need a new O2 sensor, or an O2 simulator (or w/e its called). I plan to do test pipes soon, so let me know what you find out.

[cuffuup28]

I found this, and it worked: Basically, this is a solution to the dreaded CEL that many of us get from switching to testpipes. The idea is to place a gap between the pipe and the sensor to reduce the amount of exhaust gases that the sensor will see/detect. This is becoming a very popular mod over since it is NON-PERMANENT, and it does not require modification to the O2 sensor harness. Normally, I would throw a CEL about every 85 miles, so far this mod has been worthwhile.

Parts/tools Required:

1) Help! Part # 42002 and/or 42009 by Motormite, these are known as sparkplug-arresters, which should be available at any generic auto supply store (e.g. Pepboys, Autozone, etc.). Should run about $5 per package.

2) Tools - means to lift/secure vehicle - 10 mm socket or wrench - 7/8” wrench for O2 sensor (or 22 mm) - drill and 1/2” drill bit (read below) - Dremel tool and various bits - zip ties & dykes

Procedure:

1) Jack up car and secure with jack stands.

2) Remove 2 plastic nuts and shield covering the O2 sensor/harness junction (10mm), this will make the R&R of the rear O2 much easier.

3) Remove the rear O2 sensor, which is the one downstream of the cat.

4) Modify the sparkplug-arrester(s). First I drilled out the arrester using the 1/2” drill bit, then I used various drill bits and the Dremel to shave the rest until the sensor would fit. If you have the means to measure the sensor and get the appropriate drill bit, that would be highly recommended.

5) Install arrester(s) into downpipe & replace O2 sensor.

There are several combinations for the fix. The 42002 is a tapered-mount and the 42009 is a flat-mount with a crush washer. The 42002 (tapered) is notably longer in length than the 42009 (flat).

I elected to start off with the 42002 (tapered) only, which is the longer of the two, this worked out fine for 120 miles. Next, I placed a non-drilled 42009 (flat) in front of the 42002, so far no problems.

6) Replace 2 plastic nuts and shield covering the O2 sensor/harness junction. 7) Secure harnesses with zip ties. 8) Clear DTC’s/Reset ECU.

[nissan 350z kid]

^ i might try to do that. My friend said he thinks he can have someone clear it with a code clearing thing idk what its called, but if it dont work then i will try that.

Thanks

[cuffuup28]

Code clearing device will not work, and will only turn off the cel until the next time you start the car. The computer will still "see" that the car is having an exhaust issue, and throw the cel again. Spend some time and a few pennys, and just do the fix above.

[nissan 350z kid]

ya im going to that mod in like 2 weeks i hope it works.

[dasoupdude]

well if it bothers you constantly (like me) and you just don't feel like doing it you can always just do the reset ecu the manual way, its ghetto but it works..(be sure your doing this by yourself or near a friend that understands what you are doing..otherwise you'll look like a loony crackhead. uhh)

A)turn the ignition on and make sure the accel pedal is completely released. Wait 3 seconds

b) in under 5 seconds fully press the accel pedal (hard) five times (each time it is pressed it should also be fully released.)

c)wait 7 seconds and press the accel pedal for and hold it for around 10 seconds until you see the check engine light begin to flicker.

d) release the accelerator pedal and wait 10 seconds (it will still be blinking if you did it right so far, not solid)

E)fully hold the accel pedal again and keep it for at least 10 or 11 seconds, take your foot off (still blinking)

F) Turn ignition off and try and start the car to see if the CEL dissapeared.

(pray it dissapared cause theres nothing more agonizing than failing then repeating this all over again.)

i hope this helped