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 10-31-2006, 08:43 PM   #1
Nova504
Stock
 
Join Date: Oct 2006
Location: chicago
Posts: 5
Nova504 is on a distinguished road
Unhappy Starting Problems

Ok, I am new, and i just bought an 87 supra turbo, 2 weeks ago. I have searched on this forum, for help with my problem, but cant find anything that quite fits me. Anyway everytime i start the car, when the engine is cold or warm(when the car is already hot, no problem). It takes awhile to start, sometimes up to 5 mins. Because when it does catch, it might stall out. Then when the engine wants to keep running, it runs kind of rough, like it is about to stall. So once I have let is warm up some. I try to put it in drive or reverse, sometimes the engine will run for about 2 seconds then stall. Once the car is in motion, and is hot(not overheating hot) , the car runs great. The guy i bought is from said the timing needed to be ajusted, but i dont know.This seems really weird to me, this is my first foreign car. I am used to chevys and fords. Can someone please help me. This is so annoying and embarrassing.

Last edited by Nova504; 10-31-2006 at 08:49 PM.
Nova504 is offline   Reply With Quote
Old 10-31-2006, 08:59 PM   #2
Murd
3" Exhaust
 
Join Date: Jul 2006
Location: Vancouver, WA.
Posts: 233
Murd is on a distinguished road
Default

First, do this

http://www.toyota-supra.info/forums/...read.php?t=323

Should help you in diagnosing it.
__________________
1989 N/A Targa 5spd. Metallic Grey, w/grey interior. No mods done.
Murd is offline   Reply With Quote
Old 10-31-2006, 09:52 PM   #3
Nova504
Stock
 
Join Date: Oct 2006
Location: chicago
Posts: 5
Nova504 is on a distinguished road
Default

Already did that, I got a neutral safety switch code.
Nova504 is offline   Reply With Quote
Old 11-08-2006, 08:04 AM   #4
stevanom
Stock
 
Join Date: Oct 2006
Location: Kalmthout Belgium
Posts: 11
stevanom is on a distinguished road
Thumbs up starting problems

Hi,

There are mutliple possibilites, but timing is not one of them.

1/ spark plug cables and ignition cables can be old and invisibly cracked, thus leading the spark away when cold.

Normally you should be able to hold the cable in your hand whern the engine is running without feeling anything (try this with cold engine)

2/ spark plugs worn out

3/ cold start sensor out of order or : like I had : oxidated connection plug on the sensor

4/ injection computer blown. with these engines letting the starter run without the sparkplug cables in their place (often done for measuring compreesion or after replacing timing belt) or running with bad cables causes reflux of the jolt into the comuter and thus blowing it.

5/ oxidation pon other contacts.

Try the simple things first!

Success

Steven
stevanom is offline   Reply With Quote
Old 11-11-2006, 01:32 AM   #5
Nova504
Stock
 
Join Date: Oct 2006
Location: chicago
Posts: 5
Nova504 is on a distinguished road
Default

Thanks Steven, I really apprecate the help. I just changed the spark plugs, but still doing the same thing. I am going to change the wires and check the cold start sensor, like you said.
Nova504 is offline   Reply With Quote
Old 11-12-2006, 06:27 AM   #6
jfunez
12psi boost
 
jfunez's Avatar
 
Join Date: Oct 2005
Location: georgia,usa
Posts: 338
jfunez is on a distinguished road
Default

ignition wires increase their resistance when temperature increases....so its a big possibility..
jfunez is offline   Reply With Quote
Old 11-14-2006, 08:14 PM   #7
stevanom
Stock
 
Join Date: Oct 2006
Location: Kalmthout Belgium
Posts: 11
stevanom is on a distinguished road
Smile

I replaced the ignition cables and the cap of the delco (? right word?) and my starting problems are over.


If your car continues to start badly : there is not only a cold start injector, but a cold start sensor (these MA70 are really full of sensors
stevanom 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
Starting Problems turbo jim MKIII Supra 7 03-30-2009 08:09 PM
cold starting problems Cjanik MKIII Supra 9 08-02-2008 07:50 PM
starting problems Donovan MKIII Supra 2 06-09-2007 06:53 PM
Starting problems and accleration problems! alekjame22 MKIII Supra 6 03-17-2007 11:19 PM
Starting problems HELP adellicson MKIII Supra 0 05-08-2006 04:42 AM


All times are GMT. The time now is 06:14 AM.


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