I recently degrease my wifes 1990 miata, and had the same trouble.
i found that being twin cam . the water had gotten down in to the spark plugs.
I first removed the plug leads, then blew out the water with compressed air.
then removed the plugs and wiped clean, with a rag down the spark plug holes, then finished with a clean of contact cleaner , then reassembles and yay no more splutter
.
so spark plugs were shorting cause it was all wet down in there ?
A 1.6L inline 4-cylinder BP family engine.
Chev LS6 T56
At the driver's side of the engine on the back, near the firewall, it has a yellow plastic cap (usually)
92 mazda miata not pulsation in the injectors
On a 1991 Miata, the battery is in the trunk. It is probably the same on the 1990.
timing BELT ( according to Gates , they make timing belts etc. - it is also an interference engine )
under the hood
There is no Distributor cap or rotor in a 91 Mazda Miata. All years of the Miata use electronic computer controlled ignition systems.
yes
Trunk right hand side
14x10
46 using cruise contol on highway