how do i adjust my fuel??

my car is running very rich... i can smell the fuel while i'm driving... also, there's some kind of back pressure; i hear popping sounds coming from the exhaust... is there a problem with this? help please.

i have a 86 FC3S non-turbo 5spd

 

Check the ECU codes. Might be a water thermo sensor or an Oxygen sensor...

Do you have a hole or leak in the exhaust? This would creat popping..

 

You should also check your car for leaks (especially under the upper intake manifold area). There's a common failure on RX7's with the pulsation dampner which can lead to fires (yikes!) if not taken care of. Better be safe than sorry and check!

 

how do i check for codes on my car??

and what and where is the pulsation dampener?

so far that i know there is no leak in my exhaust...

 

bump...

my exhaust is stock...
i still need to know how to check for codes in my car without the tool... thanks..
and how to see if my pulsation dampener is bad or leaking...

 

i found out how to get the codes... and i found out that my pulsation dampener is leaking... all i need to know now is to see if i can fix the pulsation dampener without replacing it with a new one...

 

No. Go buy one.... They arent that expensive.

 

cool, but i dont want to have to wait for mail... can i just go to mazda and pick one up?

 

You should be able to order one from Mazda. Or replace it with a banjo bolt like many other people do.

 

what's the specs on the bolt? so i can go out and buy one... i can get it from home depot right?

 

Just remember that a banjo bolt doesn't do a PD's job, but makes sure it doesn't leak and cause a fire. Whichever is more important to you, you have to decide. I'd have to search and find specs.

 

Summitracing.com has it:

Earls part number 997591

Not sure if this will work or not:

http://store.summitracing.com/defaul...7591&x=13&y=12