new2mazda

iTrader: (1)

well first for modifications, i have a large vmount setup. koyo rad large intercooler and of course a basic efan rated at 1200 cfm. the temp gauge on rad cap says it sits around 180-190 and my stock gauge in cluster says about halfway unless im cruising highway or its a decent cool night

after driving it anytime at this temp, near half of stock gauge, it will not restart... any solutions or anything i can do to help with this? any thoughts and opinions welcome. thanks

new2mazda

iTrader: (1)

anyone? is this too hot to run in the first place?

satch

iTrader: (1)

You need the right amount of fuel for the car to start and a warm engine needs less fuel than a cold engine. The Water Thermosensor helps to decide how much fuel is used at start up based on engine temperature. The sensor provides a reading at the ECU and helps govern how much fuel to use. W/the key to on, pin 2I of the ECU (Green/White wire) should have a signal of 2 to 3 volts w/a cold engine and .4 volts w/a fully warmed engine. Check this reading and it will tell you whether the sensor/wiring is causing your problem.

The gauge may be incorrect but if it were the needle should climb to about 1/3 up from the bottom range if everything was working accordingly.

new2mazda

iTrader: (1)

so should it be at 190? and this means its a fuel issue then? i have all emissions removed? that mean this will only be solved with an actual tune?

satch

iTrader: (1)

I'm not sure what is defined as being proper or too high related to engine temps but it "appears" to be within five to ten degrees of being normal but I will defer to those that follow this more closely. If the reading at the sensoer pin is off then it is very likely a wiring problem and nothing else.

new2mazda

iTrader: (1)

so your opinion on hot starts? possibly bad injectors or running too much fuel pressure?

satch

iTrader: (1)

There are a number of possible causes. When you check one possible cause and it checks out as not the actual cause you move on to the next possible cause.