New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Problems With 88 RX-7 NA

Thread Tools
 
Search this Thread
 
Old 07-26-10, 09:09 PM
  #1  
Junior Member
Thread Starter
 
ATCincy's Avatar
 
Join Date: Jun 2010
Location: Cincinnati
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Problems With 88 RX-7 NA

So I picked this car up with 61K miles. It's super clean and ran ok when I bought it. Replaced the wires and plugs, replaced the fuel filter. Replaced both mufflers. Serviced/checked the BAC valve, confirmed compression, checked for vacuum leaks and it still runs like ****.

No power from Idle to about 3K, bright red glow around the O2 sensor. Could a bad O2 sensor be the problem or possibly clogged cats? I've messed with it for two weeks in my spare time and am getting extremely frustrated.
Old 07-27-10, 08:39 AM
  #2  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 110 Likes on 93 Posts
Check the timing. Maybe someone moved the CAS.

Have the injectors cleaned.
Old 07-27-10, 12:43 PM
  #3  
Junior Member
Thread Starter
 
ATCincy's Avatar
 
Join Date: Jun 2010
Location: Cincinnati
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Looked for a thread on setting the timing. Never done before. Any advice/guidance would be greatly appreciated. I'm assuming a standard timing light will do the job. I have the Haynes Manual on order but it's not here yet.
Old 07-27-10, 01:07 PM
  #4  
Moderator

iTrader: (1)
 
satch's Avatar
 
Join Date: Jun 2005
Location: tulsa,ok.
Posts: 11,738
Received 12 Likes on 11 Posts
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/86-tii-swap-wont-start-but-really-wants-887302/page4/
Old 07-27-10, 04:14 PM
  #5  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 110 Likes on 93 Posts
You will also find links to download the Factory Service Manual in the FAQ.
Old 07-31-10, 05:27 PM
  #6  
Junior Member
Thread Starter
 
ATCincy's Avatar
 
Join Date: Jun 2010
Location: Cincinnati
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
I had removed the heat shields from the exhaust last weekend to access a leaking exhaust manifold gasket. Drove it after dark and popped the hood to see the exhaust manifold glowing bright orange. I punched out the converters, installed a new O2 sensor, bolted her back together and the car is running absolutely great.

Using the search function on this site has provided tons of info.
Old 08-01-10, 10:28 AM
  #7  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 110 Likes on 93 Posts
That's very odd. The O2 sensor is only used during light load cruising on these cars. I still think you should check your timing and TPS adjustment. At the same time, check the ACV valve.
Old 08-01-10, 07:54 PM
  #8  
Junior Member
Thread Starter
 
ATCincy's Avatar
 
Join Date: Jun 2010
Location: Cincinnati
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
I think the issue was the clogged converter. For whatever reason, with the clogged converter, the previous owner had unplugged the O2 sensor so that the car would run. After crowbarring the cat/pre-cat innards, I was able to plug in the O2 sensor and the car is running a ton better. I plan to purchase new converter. Any suggestions?
Old 08-02-10, 07:55 AM
  #9  
Junior Member
 
oilrota's Avatar
 
Join Date: Jul 2010
Location: Houston
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
I was thinking clog converter as well... I know magnaflow makes a good one...
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
ZacMan
Build Threads
4
09-19-15 09:20 PM
vmerino
2nd Generation Specific (1986-1992)
0
09-05-15 11:26 AM



Quick Reply: Problems With 88 RX-7 NA



All times are GMT -5. The time now is 01:09 AM.