Hi guys!

Here again But now hopefully with some helpful information.

My Aveo (diesel) began to be more and more difficult to start. Cold outside. I read that the problem could be the glow plug. I measured them and saw that three was broken. They should show about 0,5-1,7 ohm when they are OK. My was 0,7 (ok), 170 (bad), 1900 (nightmare), 43 (also bad) ohm I changed all four glow plug, and emidiatly the error code 89 dissapeared! I did that yesterday so maybe it's to early to say to much. But I hope!

I still think a lot of things can trigger the error code 89, but for me it was maybe the glow plugs.

Hopefully it help someone else to!

Take care!
/Emanuel