Mazda MX-6 1998, Workshop Manual

Page: 154 / 1282

TROUBLESHOOTING [ENGINE CONTROL FS]
Description of Drivability Problems
• S T U M B L E : M ild ly irre g u la r p e rfo rm a n c e d u rin g a c c e le ra tio n .
• H E S IT A T IO N : A d ip o r fla t s p o t in p e rfo rm a n c e ju s t a fte r th e a c c e le ra to r p e d a l is d e p re s s e d .
• S U R G E : C o n tin u o u s irre g u la r p e rfo rm a n c e d u rin g c ru isin g .
ENGINE SPEED
W 6 U 1 0 1 W A R
Fuel Pressure Release and Servicing Fuel System
Warning
• Fuel vapor is hazardous. It can very easily
ignite causing serious injury and damage.
Always keep sparks and flames away from
fuel.
W h e n th e e n g in e is n o t ru n n in g , th e fu e l sy s te m is
u n d e r h ig h p re s s u re .
Warning
•
Fuel line spills and leaks are dangerous.
Fuel can ignite and cause serious injuries
or death and damage. Fuel can also irritate
skin and eyes. To prevent this, always
complete the following “Fuel Line Safety
Procedures.”
Fuel Line Safety Procedures
1. R e le a s e th e fu e l p re s s u re b e fo re d is c o n n e c tin g a
fu e l line.
(1) S ta rt th e e n g in e .
(2) R e m o v e th e fu e l p u m p relay.
(3) A fte r th e e n g in e sta lls , tu rn th e ig n itio n sw itc h
to OFF.
(4) Install th e fu e l p u m p relay.
2. A vo id le a ka ge .
(1) W h e n d is c o n n e c tin g a fu e l line hose, w ra p a
rag a ro u n d it to p ro te c t a g a in s t fu e l le a k a g e .
(2) P lug th e h ose a fte r re m o va l.
3. Install h ose c la m p s to s e c u re th e fu e l p re s s u re
g a u g e to th e fu e l filte r a n d th e m ain hose.
W6U101WAS
0 1 -0 1 A -1 26