2000 Mazda Millenia S with 99000 miles on it. I purchased it on the cheap from a mechanic who tried to work on it and didn't replace the timing belt tensioner when he did The timing belt and it wouldn't run for him. I redid his work as well as replaced valve cover gaskets and fixed the vacuum line errors that he made. The car basically ran fine after that aside from an odd low boost thing that it did sometimes coming off of throttle running down the road. The car would immediately boost to 10 pounds and then go down to 2 pounds according to the boost gauge. Soon after code 1540 started popping intermittently and the TCS light and all those fun things at all these cars do. So I did my homework and found the part numbers, broke down and spent $100 for the 2 associated solenoids. I put them in and now the car is actually worse. Instead of being an intermittent 1540 now it is multiple times during my 15 mile commute back and forth to work. I have to shut the car off rolling down the road and then start the car in neutral to reset it.
CODES?
173 front bank fuel trim
1455 only when the gas tank is half full or lower.
1540 of course, but sometimes the TCS light doesn't come on, even though the car is stupid and it doesn't rev past 2500.
Solenoids are new, vacuum are correct.
So what other engine management is involved with how this car decides when to activate the 1540 code and cut the fuel at 2500? I don't have a problem spending money on the car, I know that, I own another 2000 Milly S identical to this one. But this car is genuinely frustrating me.
My thoughts/ suspicions are perhaps the The Throttle Body sensor or maybe the map sensor, .... And I guess it's worth noting that the TCS Off button does not work, or something is wrong with with the wiring as pushing the button does nothing.
any other thoughts from you guys?
What is the elephant in the room I'm missing?
CODES?
173 front bank fuel trim
1455 only when the gas tank is half full or lower.
1540 of course, but sometimes the TCS light doesn't come on, even though the car is stupid and it doesn't rev past 2500.
Solenoids are new, vacuum are correct.
So what other engine management is involved with how this car decides when to activate the 1540 code and cut the fuel at 2500? I don't have a problem spending money on the car, I know that, I own another 2000 Milly S identical to this one. But this car is genuinely frustrating me.
My thoughts/ suspicions are perhaps the The Throttle Body sensor or maybe the map sensor, .... And I guess it's worth noting that the TCS Off button does not work, or something is wrong with with the wiring as pushing the button does nothing.
any other thoughts from you guys?
What is the elephant in the room I'm missing?