Idle adjustment screw won't adjust
I don't remember doing anything ridiculous to it and I did adjust (pretty sure I closed it some to try dropping the idle) it once with no problems, but the last time I went to adjust the idle adjustment screw it would only turn 1/4 of a turn total. After finding it didn't want to go anywhere I decided to go against instinct and beat the shit out of it or pb blast it (those are the only things I can think of to remedy the situation).
Anybody have an idea/recommendation for unfcuking this thing? This is a 99tb not that, I think, it makes a difference. |
Anybody?
|
Did you try lubing it?
|
why do you need to turn it?
|
Time for my idle adjustment screw words of wisdom.
Let's say you put a megasquirt or whatever on your car and you eliminated the stock ecu. Now your car idles a little high. What should you do? Don't touch the f'n idle screw EVER...that's what you should do. If it idled fine with the stock ecu, then you need to adjust your megasquirt or whatever you're using to make it idle right. |
exactly.
|
Wish someone had told me that. When I first put in my MS, I messed with the screw. I eventually got it all sorted, but it would have been much easier had I just left the screw alone.
To add to this advice, BEFORE you install the MS, make sure your idle screw is adjusted properly using the FSM procedure. On an old 1.6, that would be to warm up the car, jumper pin 10 of the diagnostic connector to ground, check your timing (set it to stock) and then adjust the screw for 850RPM. Now install the MS and never touch that screw. |
Failing that, you can use the MS to force the IAC valve to hold a middle position and force 10 deg of timing. Then adjust the CAS till you actually have 10* of timing, and set the idle screw.
|
fwiw, my idle adjustment screw is all the way in...
|
Any words of advice for someone with a 1.6 who removed his IAC AND gave away his stock ecu to fellow miata-er in need?
I royally fucked with my idle air screw ... by removing ... twice :party: -Zach |
whats controlling idle now?
i mean the positioning doenst really matter, the range of the iacv is enough to go from 400rpm to 3000rpm. |
Originally Posted by Braineack
(Post 923269)
whats controlling idle now?
i mean the positioning doenst really matter, the range of the iacv is enough to go from 400rpm to 3000rpm. I did what you're not supposed to do: change everything AND install MS at the same time :fael: . I'm concerned I'm not going to be able to isolate variables once it's time for start up. Side question for Brain - will an auto VPTS work with the MSPNP if the board hasn't been modified? (I'm assuming it plugs into the factory connector ... which it may not) -Zach |
no, the auto TB wont plug right in. even then, IIRC, a few jumper wires need to be changed/moved/added in order to run vTPS.
as far as nothing controlling idle, adjusting the screw is exactly the correct solution :) |
Originally Posted by Braineack
(Post 923280)
no, the auto TB wont plug right in. even then, IIRC, a few jumper wires need to be changed/moved/added in order to run vTPS.
Timeline is not relevant. -Zach |
All times are GMT -4. The time now is 05:48 PM. |
© 2024 MH Sub I, LLC dba Internet Brands