cruise control and other problems...

castle77 · 09-06-2005, 02:58 AM

i just got an 85 supra, and everything is going great, except i can't seem to get the cruise control to work properly. what happens is that i set the cruise, and it will stay activated for a few minutes, then the speed will start to waiver, and then it will give out completly. my guess is that its a vaccume line, but i don't know where to start looking. any help would be great. the other two problems are that it seems to miss or pause at around 5000 rpm, someone told me it was something to do with valve lifters or something, it really didn't make sence to me, so any ideas would be appriciated. the other thing is that i need two trim peices forthe body pannels of the door, if anyone knows where i can get them i would appriciate it. thanks

fire0fear · 09-22-2005, 04:56 AM

sup castle, i feel ur pain about the cruise control, mine dont work at all so ur better of than me. I can help you with the trim thought, i had the same question when i repainted my 85, i asked the guy if he had trim like this, he went back and grabbed trim that looked identical.. he just used strong ass double sided tape and put it on, looks brand new. had them on for a yr so the tape wont give out trust me. anyways you can try that i got my car done at maaco

hangsupra · 10-06-2005, 06:14 AM

my didnt work either... at first when its auto. yeah it does work.... n after i do a auto/manual conversion.... it didnt work nomore so i dont know either.... hehe...

suprra_girl · 10-06-2005, 11:56 AM

well... with the auto to manual thing... i thinkt here's a 2nd switch which needs to be wired up for cc to work

as far as cc not working and wavering...

check the throttle cable connections, check vacuum, check plugs and wiring going to plugs etc

i'll see if i can come up with anything intelligent later lol

hangsupra · 10-11-2005, 03:51 AM

well...iono... but my thorttle is working fine tho... but maybe i dont know how to rewiring my auto to manual trainning tho... so maybe thats my problem tho... well by the way i dont need it to... so i take out my cruize control... n to free up my rpm... to increase the rpm to be higher n rougher...

suprra_girl · 10-14-2005, 01:27 AM

for the manual swap here is the diagram for rewiring cruise control in

admittedly it's for a 1990 mk3 but it may help
http://www.cygnusx1.net/supra/librar.../Page_100.html

hangsupra · 10-14-2005, 03:39 AM

hey supra girl... does the wiring for the mk2 n mk3 were the same or are they difference.... hehe. just wondering...

09-06-2005, 02:58 AM	#1
castle77 Stock Join Date: Aug 2005 Posts: 6	cruise control and other problems... i just got an 85 supra, and everything is going great, except i can't seem to get the cruise control to work properly. what happens is that i set the cruise, and it will stay activated for a few minutes, then the speed will start to waiver, and then it will give out completly. my guess is that its a vaccume line, but i don't know where to start looking. any help would be great. the other two problems are that it seems to miss or pause at around 5000 rpm, someone told me it was something to do with valve lifters or something, it really didn't make sence to me, so any ideas would be appriciated. the other thing is that i need two trim peices forthe body pannels of the door, if anyone knows where i can get them i would appriciate it. thanks

10-06-2005, 11:56 AM	#4
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	well... with the auto to manual thing... i thinkt here's a 2nd switch which needs to be wired up for cc to work as far as cc not working and wavering... check the throttle cable connections, check vacuum, check plugs and wiring going to plugs etc i'll see if i can come up with anything intelligent later lol __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

10-14-2005, 01:27 AM	#6
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	for the manual swap here is the diagram for rewiring cruise control in admittedly it's for a 1990 mk3 but it may help http://www.cygnusx1.net/supra/librar.../Page_100.html __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

09-22-2005, 04:56 AM	#2
fire0fear Stock Join Date: Sep 2005 Posts: 2	sup castle, i feel ur pain about the cruise control, mine dont work at all so ur better of than me. I can help you with the trim thought, i had the same question when i repainted my 85, i asked the guy if he had trim like this, he went back and grabbed trim that looked identical.. he just used strong ass double sided tape and put it on, looks brand new. had them on for a yr so the tape wont give out trust me. anyways you can try that i got my car done at maaco

10-06-2005, 06:14 AM	#3
hangsupra 12psi boost Join Date: Jan 2005 Location: 209 area in cali. Posts: 397	my didnt work either... at first when its auto. yeah it does work.... n after i do a auto/manual conversion.... it didnt work nomore so i dont know either.... hehe...

10-11-2005, 03:51 AM	#5
hangsupra 12psi boost Join Date: Jan 2005 Location: 209 area in cali. Posts: 397	well...iono... but my thorttle is working fine tho... but maybe i dont know how to rewiring my auto to manual trainning tho... so maybe thats my problem tho... well by the way i dont need it to... so i take out my cruize control... n to free up my rpm... to increase the rpm to be higher n rougher...

10-14-2005, 03:39 AM	#7
hangsupra 12psi boost Join Date: Jan 2005 Location: 209 area in cali. Posts: 397	hey supra girl... does the wiring for the mk2 n mk3 were the same or are they difference.... hehe. just wondering...