Quote:
Originally Posted by thermogod
s13 with a KA24DE with an IACV from an S14. it's all plugged in, cleaned out, the gasket is new. but adjusting the iACV has 0 effect on idle. and on cold starts, it acts like it has no IACV (rpm doesn't stay high until the engine warms up). wondering why that might be.
when the car is hot and i'm coasting in neutral to a stop, sometimes my idle bounces up and down. this doesn't happen when the car isn't moving. pressing the brake doesn't change anything (idk, maybe the brake booster was pulling vacuum and i had a leak somewhere else). car idles normally in all other situations. also wondering what might be happening here
MAF connection is good, intake manifold is clean of all carbon, PCV valve is hooked up, no ECU codes.
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You have to put the ECU into "set timing/idle speed" mode by disconnecting the TPS.