help with tune ca18det im in a hurry ;/

Anders_r · Post by **Anders_r** » Sat Aug 15, 2009 10:54 pm

maybe u got an idea of what this is john?

I was on my meeting yesterday (friday) car runed good for 3 hours maybe. then suddenly the AFR got highered by 2 AFR on every rpm ;S

for example i had a cruise on 14,5 around now its 16,5 i have changed nothing

John · Post by **John** » Tue Aug 18, 2009 10:37 pm

Sounds like you have some very strange problems. The fact that it gets a lot richer after gear change is because of your dumpvalve. The reasons for the AFRs to suddenly change after your Friday meet could be because a vacuum leak or maybe a exhaust leak.

/J

Anders_r · Post by **Anders_r** » Tue Aug 18, 2009 11:20 pm

John wrote:Sounds like you have some very strange problems. The fact that it gets a lot richer after gear change is because of your dumpvalve. The reasons for the AFRs to suddenly change after your Friday meet could be because a vacuum leak or maybe a exhaust leak.

/J

i cheked my fuel pressue on IDLE should be 2,5 i had that before..

now its 1,7. maybe mu fuel pump has seen its best days ?:P