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View Full Version : RB26 idle issue


l adam l
01-07-2016, 04:40 PM
I have an issue with my idle, it's jumping up over 1000 rpms from 1-2k. Runs and drives fine. Will just idle up to 2k then fall back down to 1k just keeps doing that. I'm ballparking the rpms still haven't gotten rpms set correctly...have wiring specialties pro harness, stock r33 vspec engine, stock mafs...stock...only thing is it currently doesn't have a boost controller, actuators are just rooted into intake right now.. I've got one I'm going to install after I figure out this issue . Timing was spot on before this issue.. checked tps and found its sitting at .138 volts and goes up to about 2 volts. Leads me to believe that the tps is bad. Just seeing if anyone else has had this issue and if that fixed their problem? Also considering buying Nissan consult tool, or would that be a waste if I were to just buy nistune and the license?

Black240Ct
01-07-2016, 05:41 PM
could be a coolant temp sensor, knock sensor.

i had a similar issue on my rb20.. ended up being a leaky intake manifold gasket

l adam l
01-07-2016, 06:11 PM
Thanks. I guess I'll have to see about smoke testing it before I order anything.

dbeiler
01-07-2016, 06:42 PM
Did you adjust the TPS? 2 volts is too high. It must be under 0.4 volts to idle.

tumulam
01-09-2016, 05:53 AM
2 volts is too high. It must be under 0.4 volts to idle.http://goo.gl/3uUr5c