View Single Post
Old 11-15-2014, 05:27 PM   #1
Join Date: May 2013
Location: Georgetown, SC
Posts: 210
3.4 motor swap into 1998 boxster

Anyone have any thoughts??

DME is 5.2.2 from the 2.5 Boxster

Intake and throttle body is from the 996 Carrera

Air filter box is from a 987 but converted to fit in the 986

3 1/2 inch silicon piping runs from air filter to throttle body

MAF is stock from the 996 with the 3 inch 987 tub that holds the 996 MAF

MAF is located approximately 6 inches from the throttle body opening.

oxygen sensors are the stock 2.5 oxygen sensors

Finally got the motor in the car and started it up today....major mile stone.

I had my DME re-flashed with a ROW flash. Am running CAT by pass pipes with no muffler as of yet.

Put the boxster 2.5 pre-CAT oxygen sensors on the by-pass pipes.

No seats in car yet.

Motor started right idle ...NO FAULTS !!!

blipped the throttle a few times and got the following FAULT CODES:









I am only guessing......... I have a bad Oxygen sensor in bank 2 (4,5,6)

Cleared faults...and again at idle, it caused no fault code. gave it some revs. and same codes as above showed up.

Any thoughts?

Pictures and writ-up to follow.

Thanks, Bob

Last edited by Reebuck1; 11-16-2014 at 04:28 AM. Reason: More descriptive title
Reebuck1 is offline   Reply With Quote