tougekid1 0 Report post Posted November 11, 2015 Motor is a 1jz VVTI? I started noticing about 6 weeks ago the RPM would drop a little when first started. Now it wont stay running till its fully warmed up. It has a aftermarket TB. Motor came from a 110 swapped to cable. Tuned with a PFC. Any ideas? Any help would be appreciated. Share this post Link to post Share on other sites
Gordo 0 Report post Posted November 11, 2015 When is the last time you cleaned it ? Share this post Link to post Share on other sites
DiscoShit 0 Report post Posted November 11, 2015 Not sure about 1jz. But 2jz vvti has no iacv. The iddle is controlled by the ecu through the throtle motor it self. Share this post Link to post Share on other sites
tougekid1 0 Report post Posted November 11, 2015 Correct Discoshit. It is the same for a 1j VVTI. So now I'm trying to narrow down the problem. With the aftermarket TB I was worried that there would be an issue. But this just started to happen a few weeks ago and I have had the motor in for well over a year now. No issues till lately. Im at a loss here. I have checked all vacuum lines, IC piping. No lose plugs anywhere. Really at this point I was grasping at straws. So any ideas? Share this post Link to post Share on other sites
DiscoShit 0 Report post Posted November 11, 2015 You are on stock ecu? Maf and all? You could just wire one of those evap solenoids to work as a iddle up valve. Share this post Link to post Share on other sites
tougekid1 0 Report post Posted November 11, 2015 No. PFC and MAP. Share this post Link to post Share on other sites
tougekid1 0 Report post Posted December 12, 2015 So it has been a while but.. All I needed to do was adjust the set screws for the aftermarket TB. Apparently that causes a lot of funky issues. Share this post Link to post Share on other sites
