so... i got my turbos rebuild redid all the vacuum lines cleaned the tb uim and lim new injectors new belts etc... the car started right up no leaks whatsoever but the idle is at 4k do i have to remove the tb to adjust the tps and idle screw can someone give me a link to adjusting all of the idle and throttle stuff also what does adjustimg the throttle cable do it seems pretty loose thanx guys i also needa diagram of where does the air puump connect to from the back like what hose to use and where to put it

 

Check out http://robrobinette.com/tps_adj.htm for starters.
My idle ran high when the thermal pellet was warming up.

 

Have you checked for vacuum leaks? If the throttle cable is loose, its not your issue. If there was nothing wrong with your tps before, there should be nothing wrong now. Look into the things you changed first.

thewird

 

A bad or misadjusted TPS won't cause an idle that high.

Idle is set by air getting around the throttle body into the engine. If it's that high, you have a decent size air leak somewhere. It's either somewhere after the throttle body or the throttle body is stuck open, it's that simple.

Dale

 

Check your brake booster rubber lines.

I don't think a 5/8th hose could breathe enough air to get you to 4000 rpms... but it's worth a look.

 

Could the throttle body be stuck open due to the speedo cable or any other screws... the only other screw i played around with was the screw with the spring that sits next to the tps but i dont think that will lower it another 1300 RPMS...


I adjusted the TPS to fully closed... The idle went down to 2k but thats the lowest i can get it to...
How long was it before your idle went back down due to your thermal pellet

Yea... I dont see any vaccum leaks... especially on the throtle body or upper/lower intake manifolds... i did remove the TPS to clean the Thhrottle body and put it back so so far i was able to go from 4k to 2k by adjusting the TPS but i dont know how to use a multimeter or where to set the darn thing too... i just been using the DCV side with 20m or 200m but when i turn the thrttle it never gives me 4.8 or 5.00 it gives me like 23 or 44 or something weird like that so i just closed it all the way down. Could the adjustable screw with a spring thats next to the TPS lower ir down even more from the 2k?

 

P.S. even though i did not touch the screw that holds the upper butterflys open which is on th eopposite side of the throttle body should I back that screw off too thats hold into place by a tiny nut.

 

I just ran the check engine lights... I got Codes 12 and 18.
12 - Throttle sensor (full range)
18 - Throttle sensor (narrow range)
Can anyone help?

 

Post #2 unless you have a wiring problem.

 

I had an issue like this a while ago. It turned out that the dashpot was out of whack. It's hard to explain.. basically another throttle controller. It is right around the tps. It's basically a little white button that should be pressing on some something. Mine was about 3mm away from it and fixing that fixed my problem. My description is terrible - i know, but just search 'dashpot' and it should be a little more clear. Adjusting it was fairly straightforwards too if I remember correctly.

 

i broke my TPS =) I dont know how to reinstall it someone said to put it on with the connector side up 90 degrees then rotate it counter clokwise but when i try to do it mine hits the housing of the fast idle housing... . Maybe when i put the fast idle housing back i should of aligned a little moreto the right so the TPS can clear it. Anyone has directions on how to install the TPS?

 

Check this post:

https://www.rx7club.com/showpost.php...50&postcount=9

 

Thermal pellet has nothing to do with idle.



Check the idle air bleed out screw under the throttle bodie elbow. Its a phillips
Then check the Bac valve for possible failure

 

Im just looking for a TPS now.. I will updat eevryone once I get one. thanx for the replies

 

I'm guessing he meant thermowax, not thermal pellet. Thermowax can definitely affect the idle rpm, though I'm doubting it could cause a 4k idle. Gotta be a vac leak someplace post throttle body...

Justin

 

Your prob right i didnt even put the two together. The thermowax could possibly get sticky and cause this issue. Unbolt it and see i suppose

 

Update.

I stuck a towel on the bottom flap of the throttle body and it idled perfect 800rpms. stayed there. How do i adjust that botom flap of the throttle body?