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Old 09-19-2010, 09:24 PM   #1
Scooby Newbie
Member#: 195343
Join Date: Nov 2008
Chapter/Region: E. Canada
Location: Between 137 and 55 ...
1998 Impreza RSTi

Question Freaky problem (vss inside) help please!

Okay in June I change engine and tranny for 6spd. Forgot to change vss (my car is a 98 Impreza, so 2 wire vss). I drive the car without speed reading and vss. The ecu (Ecutek flashed) never goes on fail-safe at this moment.

In July, we go for retune Ecutek. All is working good, again without vss because the internal shaft is broken into the tranny ... No fail-safe!

Once I go out from the shop, bang! Fail-safe at 4500 rpm. Okay, I don't have a vss, the tranny still unrepaired.

Now! We have repaired the tranny, I have a speed reading on my speedo, all seems to work perfect. 5 minutes later, 4500 rpm cut ... Why?? I now have a vss, I now have a reading, what is broken this time?

But, why before the retune, with NO vss no cut, and now, with vss cut-out???

Seems to be a parameter on ecu but not sure ... It cannot be the vss I think, I have a reading, it cannot be the wiring I think the car work perfect without cut for about 15-45 minutes ... I don't understand ...
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