Since installing the Zeitronix WB and making the required changes to the BIN for open loop running, my engine will cut out every one in a while. When I drive the car for an hour, it might do it 4 or 5 times. If I am at a stop, the engine will usually die. If I am driving, its like I turned the engine off and then back on real fast. The faster I am driving, the less I feel the effects of the cut out.

I was cruising down the highway this evening with the DIAG screen up when it happened (no data log). AFR was in the 14-15 range, I felt the engine cut out (like maybe 1/10 of a second) and looked down st the display and the AFR spiked to 20 and then went back to the 14-15 range after the engine kicked back in. I continued on down the highway.

I had to disturb the ECM and knock sensor under the dash when I installed the Zeitronix controller. I used Velcro and a zip tie to mount it to the ECM. It doesn't seem like a loose wire thing and the ECM is not throwing any codes. Could it be a setting in the BIN causing an issue or could the Zeitronix be creating some electronic interference?

 

The thread is a few months old but I see nobody responded.
My ZT-2 looks at WBo2, RPM, TPS and MAP. It is grounded properly, but every now and then it makes the TPS signal as logged from the ECM go high. I can unplug the ZT-2 and the TPS comes good.. Plug it back in and it reads high again.. Weird.. and annoying.

Are you logging TPS or MAP with the ZT-2?

 

About the TPS with the ZT-2, Dominic was having the same issue. In the end he just disconnected the TPS input to the ZT-2 and left it at that.

RBob.

 

Thanks RBob, good to know I'm not the only one.
My ZT-2 is at least 4 years old now, I might ask them about this issue and determine if it may have been fixed in a more recent firmware update.

Ben.