[1988_Supra]

Hey whats up supraforums i got a 1990 supra 7mgte, the idle will drop till about 500 and just jump up and down around there then by it self it will jump to around 800-1000rpms and sit there for about a minute and drop down again, it keeps doing it. it doesnt seem to effect the cars driving in anyway just idle i got engine codes, 51 and 52 .can anyone help me with what is going on? thanks everyone

Edit-Put the new tps in and the code 51 doesnt show up no more but car seems to be running the same with the idle not sure what it is and after that i checked my codes now i have 13 and 52 still , thanks for your help everyone

 

[7mgte is a pos]

code 51 Adjust or replace your throttle position sensor.
code 52 rewire your knock sensors with insulated cable.

 

[1988_Supra]

code 51 Adjust or replace your throttle position sensor.
code 52 rewire your knock sensors with insulated cable.

thanks alot man!

 

[7mgte is a pos]

http://www.supras.com/06/techcenter/display.php?QID=69
I reused my KS connectors.