Help!! 91 missing/underpower issue - ZR-1 Net Registry Forums

SDZR-1 · 09-01-2007

Ok...been experiencing this for about 3 days now...pulled codes and only found throttle position sensor to be too high but it was only showing .3 volts. service engine light came on twice today for about 5 seconds each time. to describe it best there is a clattering sound (sounds similar to a lifter clattering) that comes from underside of engine (maybe tranny, I cant tell for sure) that goes away with a bit of throttle. it is also missing and has less than superior power, although I can feel the secondaries open up at full power. I have spark to all plugs. I dont know what else to check, any tips would be greatly appreciated. Also, fuel mileage seems to have dropped quite significantly.

thank you
Jarvis Bruhn

09-01-2007	#1
SDZR-1 Join Date: Aug 2007 Location: Bison, SD Posts: 106	Help!! 91 missing/underpower issue Ok...been experiencing this for about 3 days now...pulled codes and only found throttle position sensor to be too high but it was only showing .3 volts. service engine light came on twice today for about 5 seconds each time. to describe it best there is a clattering sound (sounds similar to a lifter clattering) that comes from underside of engine (maybe tranny, I cant tell for sure) that goes away with a bit of throttle. it is also missing and has less than superior power, although I can feel the secondaries open up at full power. I have spark to all plugs. I dont know what else to check, any tips would be greatly appreciated. Also, fuel mileage seems to have dropped quite significantly. thank you Jarvis Bruhn