TSP224-112 idle surge
#1
TSP224-112 idle surge
Hey guys! Im having some trouble nailing down the idle in my truck. The motor is a lq4 with 243 heads, nnbs flex fuel intake manifold and injectors, tsp224 cam on a 112 lsa with lt headers. If it set idle speed to 750rpm, the truck drives perfect. However, it just doesnt lope enough or sound right to me there. But, if i try to idle it at 700rpm, i was getting some low speed surging. Well, i got that pretty much nailed down and the engine sounds much better. However, when it's idling in p/n and i rev it up, it tries to stall out as the engine returns to idle and then surges between 400-1000rpm for a few seconds until it steadies out. Sometimes it just completely dies. Any ideas or pointers from you guys to make this thing lope like it should but still drive fine?