Yet another idle question

[supraman7mgte]

Mods to my car are intake and exhaust,no engine swap,automatic with a turbo.
This is a case of,"minding my own business and all of a sudden"
This morning I started up my car to go to work and it had an idle of about 1k.No biggie I thought and cruised to work.
Getting off was a different story,the engine would idle from 1k to about 1,500 rpm in park and continue to "surge".
I have not had a chance to check codes yet as it's too dark and cold outside.
From what i've read so far this is possible a TPS prob?

 

[jrot]

sounds like you may have a vac. leak possibly....

 

[supraman7mgte]

Just found out it's trowing codes 13,43

 

[jrot]

13? never had that one....what do they mean?

 

[mkiii222]

http://cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=26

13 : No RPM signal above 1000 rpm. CPS wiring/CPS
43 : Starter Signal. Ignition switch/wiring.

Reset the ECU (pull the EFI fuse for 60 seconds) and see if the codes come back.

 

[supraman7mgte]

Went ahead and checked some of the wiring connections on the CPS,and found one at the connector that was reall worn. I think it might have been a multiple ground wire,(3)coming from the CPS.I replaced the the wire,bypassed the worn connector,and still am having the surge issue.

 

[supraman7mgte]

Day after Xmas update;
went and checked the Idle Speed Control valve per TSRM,and it checked out fine.Only problem was that I didd'nt hear the "ticka-ticka-ticka" when the car completely shut down.Disconnected the connector from the one on the manifold,and connected a ISC not mounted,aaaand...."ticka-ticka-ticka"!!!!
Hot dam,it works! Idle restored to 650,and noooo issues when driving!
Thanks to any who posted suggestions