M2018 MAzda 3 no power

Asked by GuruPQ4RG Jan 23, 2020 at 12:35 AM about the 2018 Mazda MAZDA3 Sport

Question type: Maintenance & Repair

2018 Mazda 3 hatch 20000k's . Always serviced. When I accelerate it just
dies, does not  stop  just has n power ,. ONly even happened at low speed ,
never at highway speeds. Extremely dangerous as can cut out when
crossing a road etc, ,  rand mazda , turn of i stop no difeerence . get nw fuel
no difference ,
yesterday drove from parking spoy, about 30 mtetes just died , still ruing no
poer , off on . ok for a another 100 meters . MAzda have it now , runnng
perfectly they say, did all codes only code said accelerator and brake had
been applied simulataneoisly,, mm have been driving he same for 20l.  they
jus tsay keep an eye on it .. ? amy advidce ,i am not convinced  it damn
dangerous . thans alan

2 Answers

98,725

If the Mazda dealers mechanics have seen this, I'm sure they've checked the MAF Sensor, Throttle Position Sensor, Oxygen Sensor, and the Air Intake filter. Did they check for fuel pressure? You might have a dying fuel pump or something in that system, like the regulator or a clogged filter. But I can't understand why a mechanic would miss that.

2 people found this helpful.

thx they did full diagnostics including fuel pressure . , They mentioned a something re the operate between the brake application and rhe accelerator that kicks in when the pedals are operated simultaneously. said that this safety mechanism was because in the US crashed has occurred when drivers had the brake depressed use full accelerator the quickly released brake and were propelled forward. , this essentially cut out the throttle when the brake is depressed so tha this can not occur, only been changed in last 6 months, THis has occurred 10k after the last mazda service, ,It was ok in the morning i parked it , for 3 hours , drove from street park up to corner,100 metres when it occurred They specifically said that they had checked the fuel pressure, pump, sensors etc. they have driven it 5 times cannot replicate, The ycalled and said that I could pick it up,I told them that I won't drive it again until they find something, best he said was that was it may have been some bad fuel, Fully filled it 159ks before tis had occurred, not a problem, suddenly bad fuel. this car is dangerous to drive, it only happens on take of ..I have run out of fuel plenty of times in the last 40 years, it feels exactly like that but doesn't stop, it had 3/4 tank in it , the fuel gauge isn't wrong as it is consistent to the distance travelled when i last filled it, If this is a manufacturers problem these cars should be recalled, the yre juts dangerous, crossing an intersection is taking a huge risk as if it doesn't fire up it could be fatal, worst part -none would even know why, just say that i was in the wrong place wrong time ,, thanks

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