Misfire problem with NA
12-26-07, 12:28 PM
#1
Newbie
Thread Starter
Join Date: Dec 2007
Location: Georgia
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Misfire problem with NA
i'm having a real hard time since im basically new to rotary. basically, im having problems with the n/a fc misfiring occasionally. but when this occurs, the power of the car stalls out and is hard to start back up. basically if theres any power left in the battery, id have to mess with the gas while turning the ignition. i took it to a few shops, and they said it the problem should be internally, but they would mess with the motors since its rotary. anyone have any ideas?
12-26-07, 12:42 PM
#2
Boost ahoy!
Join Date: Jan 2006
Location: Joplin, MO
Posts: 968
Likes: 0
Received 0 Likes
on
0 Posts
The problem of it not starting up again would make me believe it could be the flooding issue.
This will help you out a lot.
http://rotaryresurrection.com/2ndgen...nflooding.html
This will help you out a lot.
http://rotaryresurrection.com/2ndgen...nflooding.html
12-26-07, 01:44 PM
#3
If its high milage I'd say you've got leaky injectors that are providing you with more fuel than you need...thats what the backfire means. Unburned fuel is igniting somewhere in the exhaust system. Or it could also be your running too rich from an aftermarket fuel pump or a pump thats providing more pressure than you need if its not stock.
12-26-07, 01:56 PM
#4
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
That is far more then a "misfire".
It sounds like you may have the very rare sticky injector. If the injector sticks open for a while, the engine will flood horribly and stall out.
This is very rare and hard to diagnose without experience. But suffice it to say that if the car is high mileage and the injectors have never been serviced, have them professionally cleaned.
Also check the battery connections and main grounds. The battery connections should be good and tight, and not the temporary "clamp to the cable" lugs. Grounding is covered at http://www.aaroncake.net/rx-7/grounding.htm
There are many other causes for a problem like this. Big vacuum leaks will cause stalling but won't be intermittant. Your fuel pump could be failing (unusual...) or you could have some other electrical fault.
It sounds like you may have the very rare sticky injector. If the injector sticks open for a while, the engine will flood horribly and stall out.
This is very rare and hard to diagnose without experience. But suffice it to say that if the car is high mileage and the injectors have never been serviced, have them professionally cleaned.
Also check the battery connections and main grounds. The battery connections should be good and tight, and not the temporary "clamp to the cable" lugs. Grounding is covered at http://www.aaroncake.net/rx-7/grounding.htm
There are many other causes for a problem like this. Big vacuum leaks will cause stalling but won't be intermittant. Your fuel pump could be failing (unusual...) or you could have some other electrical fault.
Trending Topics
11-09-10, 06:59 PM
#8
mine has that same problem too...in fact right as i read this, just before posting i went and pulled the dip stick and smelled it...it smells of fuel...so how do we fix that problem?
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
Captain Hook
2nd Generation Specific (1986-1992)
8
09-22-15 01:12 PM
The1Sun
1st Generation Specific (1979-1985)
7
09-18-15 07:13 PM