To make this simple and to the point, this thread here
zerothread?id=109345
I have a 98 240 with the dohc ka and i did the same stuff to it. Removed ALL unecessary crap from the manifold. Leaving it clean with less clutter and less crap to troubleshoot. The motor runs strong with no issues and yes my check engine light is on, but i can ignore it and i have for yrs....
I also have a 92 hardbody with the sohc ka motor (rather have the frontier dohc motor but its not in my budget right now) and i was wondering if the same can be done to this manifold... clean it up and remove all unecessary crap.
Is there a check engine light on this truck..?? I havent seen one yet nor has one lit up obviously...
What other than the Fuel Pressure Regulator, IACV (if it has) and brake booster line needs a vacuum source to not run into any issues...??
My 240 only has those 3 vacuum sources left from factory with zero issues..Im not the sohc expert which is why im posting....
Thanks