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My 1987 mada RX7 will not idle

Tiny
DESTINY
  • MEMBER
  • 1987 MAZDA RX7
  • 2WD
  • MANUAL
  • 175,000 MILES
I have a 1987 mazda rx7, with the stock 13b rotary engine. It will not idle, my brother has changing the mass air flow sensor and the throttle position sensor, but still no luck. He may have messed it up, because when he was driving it home to me it was overheating real bad and he would turn it off and let it cool down and then run it till it overheated again. Any advice helps im desperate to get my car running so thanks to anyone who can help.
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Tuesday, May 24th, 2011 AT 1:23 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Block and pressure test it-to find out what's causing it to overheat-
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Wednesday, May 25th, 2011 AT 5:49 AM
Tiny
DESTINY
  • MEMBER
  • 2 POSTS
Thanks, but its not overheatin anymore, it just wont idle. We tried to put a new computer in it today too because my dad thought maybe my brother fried it by overheatin it and turnin it off and overheatin it again, but that didnt fix it either.
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Sunday, May 29th, 2011 AT 11:00 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
It sounds like you have a vacuum leak here are two guides to help us see what's going on?

https://www.2carpros.com/articles/stall-at-idle

Use this guide when the engine is cold only

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please go over these guides and get back to us.
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Monday, August 15th, 2011 AT 11:04 AM

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