Home / Toyota Supra Forums

Go Back   Toyota Supra Forums! Join the Supra forum! > Performance, Modification, and Maintenance Forums - for generation specific discussions > MKIII Supra

Reply
 
Thread Tools Display Modes
Old 04-04-2009, 10:36 PM   #1
cgreiner
3" Exhaust
 
Join Date: Aug 2008
Location: North Carolina
Posts: 63
cgreiner is on a distinguished road
Default Error Code 51 and 52...

51: "Switch Signal"

I know I did not make the mistake of having the AC on or hitting the gas while checking the engine lights. So, could this be from a bad ISC unit? I know I have a small coolanty leak somwhere in that area. I believe where one of the hoses connects to the ISC.

52: "Knock Sensor"

Uh oh... :-)

Could this be from using premium gas ?
cgreiner is offline   Reply With Quote
Old 04-10-2009, 01:36 AM   #2
cgreiner
3" Exhaust
 
Join Date: Aug 2008
Location: North Carolina
Posts: 63
cgreiner is on a distinguished road
Default

BUMP

Any ideas?
cgreiner is offline   Reply With Quote
Old 04-10-2009, 05:50 AM   #3
Quint
Intake
 
Join Date: Mar 2009
Location: New Zealand
Posts: 32
Quint is on a distinguished road
Default

Replace knock sensors will most likely clean the problem up.

With them playing up the computer will think there is pinging and will put the car into 'limp' mode, will drive like pooze.

Toyota wanted something like $398.00 +gst ea when i had to replace mine, paid $6 ea second hand, i suggest you go second hand
Quint is offline   Reply With Quote
Old 04-30-2009, 06:18 AM   #4
drewtiss
Stock
 
Join Date: Dec 2008
Location: Fargo
Posts: 13
drewtiss is on a distinguished road
Default

Quote:
Originally Posted by cgreiner View Post
51: "Switch Signal"

I know I did not make the mistake of having the AC on or hitting the gas while checking the engine lights automobile parts. So, could this be from a bad ISC unit? I know I have a small coolanty leak somwhere in that area. I believe where one of the hoses connects to the ISC.

52: "Knock Sensor"

Uh oh... :-)

Could this be from using premium gas ?
Yeah. I agree on him on this issue, Just try to replace the knock sensors. I used to have this problem once last February.
drewtiss is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT. The time now is 03:12 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

1986



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86