90 GT rough idle and no power - Muscular Mustangs
User Tag List

LinkBack Thread Tools
post #1 of 3 Old 02-09-2010, 11:04 AM Thread Starter
Join Date: Feb 2010
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
90 GT rough idle and no power

So i bought this mustang sunday it kinda idles, is really cold blooded, has no power at all a 2.3 mustang will spank this car. so far ive replaced plugs wires, plugs, cap and rotor, tps, and fuel filter. all these helped but it still idles rough and has no power. i also set the tps voltage to .98. the P.O. said he adjusted the timing but didnt pull the plug when he did it so im thinking i need to buy a timing light and set that. this car has so many problems i alsmost don know where to start after i get it running right.

any ideas on how to repair the floor cause the drivers seat is ripped out of the floor and i really dont want to pull the carpet and weld in a new section
NACHODADDY77 is offline  
Sponsored Links
post #2 of 3 Old 08-04-2010, 11:16 AM
Junior Member
Join Date: Aug 2010
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Re: 90 GT rough idle and no power

I had the same problem with my '93. unplug the mass air sensor and see if it get better. The idle will still be rough but the lack of power and throttle response will be back to normal. after that you can either clean the sensor or replace. Be careful cleaning it as it is a very thin wire.
shardy is offline  
post #3 of 3 Old 05-01-2012, 11:33 AM
Junior Member
Join Date: May 2012
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Re: 90 GT rough idle and no power

I also have idling problem whenever my car starts with cold engine. I have the best plugs replaced the wires, It usually starts well but a couple of minutes later it starts to idle weird.
adrianglock is offline  

Quick Reply

Register Now

In order to be able to post messages on the Muscular Mustangs forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome