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 09-16-2006, 07:11 PM   #1
86.5mkiii
Stock
 
Join Date: Dec 2004
Location: Milwaukee, Wisconsin U.S.A.
Posts: 8
86.5mkiii is on a distinguished road
Unhappy fuel problems in 86.5

i bought my supra in a non running state. i have rerbuilt the motor and fixed all visible problems but my engine runs super rich. there is no trouble code from the car. ive replaced injectors,tps,fuel pressure regulator, fuel pulsation damper, and coolant temperature sensor. the air flow meter, cold start injector time switch,and the idle speed control valve are all reading normal when i put the ohmmeter to them. its so bad that when i floor it in neutral the fuel cut kicks in at 3000 rpm. if i disconnect the tps it idles at 4000 but then i do have throttle response up to redline without the fuel cutting off. if anyone can point me in another direction it would be great.
__________________
Lead, Follow, Or Get Out Of The Way!!
86.5mkiii is offline   Reply With Quote
Old 09-16-2006, 11:10 PM   #2
Isphius
500whp yet?
 
Isphius's Avatar
 
Join Date: Nov 2005
Location: Long branch, NJ
Posts: 1,006
Isphius is on a distinguished road
Default

Make sure your TPS and CPS are set right. You have to use the ohmmeter to set the tps and you have to get the motor to top dead center for the cps. Is it a turbo? You may also just be leaking air. This happens a lot. Any black smoke? Also make sure your afm bleed screw isnt missing or something. Any kind of air leak after the afm will make it run rich, especially if its a turbo and its under boost. Give it a try!
__________________
Yay the supra assistant is gone!!! WEEE!!
Isphius is offline   Reply With Quote
Old 09-18-2006, 09:03 PM   #3
86.5mkiii
Stock
 
Join Date: Dec 2004
Location: Milwaukee, Wisconsin U.S.A.
Posts: 8
86.5mkiii is on a distinguished road
Default

ithinkright now that the engine itself is fine. i went to check the computer and when i pulled off the glove box i noticed alot of splices in the harness. i have no history of the car from the previos owner but it looks like he ran a bunch of jumper wires rightt off the harness to the fuel injectors. i pulled out the harness sonow i need a new one and probably a computer because he probably shorted it out with all those jumper wires. my car is non turbo so no cam sensor but how do i set the tps?
__________________
Lead, Follow, Or Get Out Of The Way!!
86.5mkiii is offline   Reply With Quote
Old 09-18-2006, 10:00 PM   #4
Isphius
500whp yet?
 
Isphius's Avatar
 
Join Date: Nov 2005
Location: Long branch, NJ
Posts: 1,006
Isphius is on a distinguished road
Default

Look in the tsrm. You hook a volt meter up to the terminals and losen the screws and rotate it till it reads the desried voltage.
__________________
Yay the supra assistant is gone!!! WEEE!!
Isphius 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
fuel pump problems mcm69 MKII Supra 4 12-13-2007 01:27 AM
Testing for bad ECU, &/or bad Fuel Pump elliotl MKIII Supra 0 08-21-2007 10:42 PM
Have Some Problems, need direction I thought it was a fuel thing James87n\a Non-Generation Specific Questions 2 05-26-2007 04:57 AM
fuel problems kshuping MKIII Supra 3 05-19-2007 09:39 PM
Fuel Injector problems Wilson MKIII Supra 1 11-14-2006 08:52 PM


All times are GMT. The time now is 10:19 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, 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 87