93 MIATAS RPM GOES UP AND DOWN;BUT NOT ALL THE TIME

garciamaryss
0

Asked by garciamaryss Feb 23, 2013 at 05:27 PM about the 1993 Mazda MX-5 Miata Base

Question type: Maintenance & Repair

3 Answers

judge_roy
Not Active

any trouble codes? the Check engine light come on? you did not say it was a cold engine...but not all the time means what? does it when it's warmed up? want to know more about your particular problem, sounds like an old manual distributor, but I wouldn't think they still used these on the '93 models. A centrifugal avance mechanism in the distributor will give you somethin' like this-

joef
3,455

Ah. My 5.0 does this sometimes... Usually only when its hot and in park. Check engine light blinks sometimes en the highway... I havent even read the codes (Lazy me) but I just assumed it was probably something with the EGR valve and I was dreading taking off the exhaust tube bolts >_< Bob brings up a great point though... An old distributor will definitely have these symptoms.

1 out of 1 people think this is helpful.
Iambobby Bee
50

Is your A/C on? If so your compressor may be kicking on and off...

Your Answer

Add photo

Related Questions

MX-5 Miata
Looking for a Used MX-5 Miata in your area?
CarGurus has 2,416 nationwide MX-5 Miata listings starting at $1,450.
ZIP:

Search Mazda MX-5 Miata Questions

Mazda MX-5 Miata Experts

#1 Michael Kane
Michael Kane
Reputation 640
#2 Tom Demyan
Tom Demyan
Reputation 560
#3 Racer_X
Racer_X
Reputation 280
View All

Related Models For Sale

Used Ford Mustang"
916 Great Deals out of 27,356 listings starting at $1,500
Used Chevrolet Corvette"
332 Great Deals out of 11,006 listings starting at $3,995
Used BMW 3 Series"
1,320 Great Deals out of 38,023 listings starting at $1,988
Used Jeep Wrangler"
1,178 Great Deals out of 49,385 listings starting at $1,800

Used Cars For Sale

2014 Mazda MX-5 Miata For Sale
3 Great Deals out of 359 listings starting at $18,990
2013 Mazda MX-5 Miata For Sale
6 Great Deals out of 132 listings starting at $17,495
2012 Mazda MX-5 Miata For Sale
10 Great Deals out of 101 listings starting at $15,982
2011 Mazda MX-5 Miata For Sale
8 Great Deals out of 99 listings starting at $13,957