I´m having a hard time tuning my 350 with a comp 12-249-12 cam and raised fuel pressure.
When warm and ideling blm goes slowly from 128 up to 160 in a couple of minutes cousing the 02 to go rich and i get a code 45.
Another problem is, when driving around and letting off the throttle the engine wants to stall but recovers. Sometimes it stalls completly and thats no fun in traffic.
I have disabled DFCO but it did not help.
This only happens in closed loop.
I dont know whats cousing this. Please point me in the right direction!
When warm and ideling blm goes slowly from 128 up to 160 in a couple of minutes cousing the 02 to go rich and i get a code 45.
Another problem is, when driving around and letting off the throttle the engine wants to stall but recovers. Sometimes it stalls completly and thats no fun in traffic.
I have disabled DFCO but it did not help.
This only happens in closed loop.
I dont know whats cousing this. Please point me in the right direction!
Supreme Member
Quote:
When warm and ideling blm goes slowly from 128 up to 160 in a couple of minutes cousing the 02 to go rich and i get a code 45.
Another problem is, when driving around and letting off the throttle the engine wants to stall but recovers. Sometimes it stalls completly and thats no fun in traffic.
I have disabled DFCO but it did not help.
This only happens in closed loop.
I dont know whats cousing this. Please point me in the right direction!
Start with the basics, and make sure the mechanics of the tune are good.Originally Posted by Eckin
I´m having a hard time tuning my 350 with a comp 12-249-12 cam and raised fuel pressure. When warm and ideling blm goes slowly from 128 up to 160 in a couple of minutes cousing the 02 to go rich and i get a code 45.
Another problem is, when driving around and letting off the throttle the engine wants to stall but recovers. Sometimes it stalls completly and thats no fun in traffic.
I have disabled DFCO but it did not help.
This only happens in closed loop.
I dont know whats cousing this. Please point me in the right direction!
I sounds lean, or like too much timing, to me.
Have you added timing in the low load areas?. If so reduce it...
If not, then try adding a little fuel in the low load areas.
Member
There are a bunch of threads in here about how to adjust for bigger cams. I can't remember exact names but if you spend some time searching this forum on things like "cam" and "idle" you should find them. Oh... isn't there a sticky on that in the 730 section??
Do some searching, you'll find it.
Do some searching, you'll find it.
Quote:
I sounds lean, or like too much timing, to me.
Have you added timing in the low load areas?. If so reduce it...
If not, then try adding a little fuel in the low load areas.
The bin is anlw5469 and the only things i have changed so far is the bpw and ve1 table.Originally Posted by Grumpy
Start with the basics, and make sure the mechanics of the tune are good.I sounds lean, or like too much timing, to me.
Have you added timing in the low load areas?. If so reduce it...
If not, then try adding a little fuel in the low load areas.
Its only in P or N the blms goes up, when driving around blm is at 128-130 in those cells.
Also idle rpm goes up to 1000 rpm when engine is fully warmed up.