Will not idle

Tiny
CHRIS121963
  • MEMBER
  • 1997 MAZDA PROTEGE
  • 1.5L
  • 4 CYL
  • FWD
  • 180,000 MILES
Has DTCS
P0505 P0340 P0100 P0115 P0110 P0120 P1195.

And no charge light on.
Not sure if it's the alternator or the ECM.
Car sat for about a year.
Will start and run but have to feather pedal.
Has new battery and terminals.

It's like the TPS and others are not getting the five volt reference.

If you clear codes the P0505 stays. The others will erase and stay gone until re started.
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Thursday, April 27th, 2017 AT 6:31 PM

1 Reply

Tiny
STEVE W.
  • EXPERT
Could very likely be that you have a shorted sensor that is killing the five volt. Very common issue. Pick a sensor and connect a voltmeter to it. Then unplug the others one by one until the five volt returns. (My bet is ECT sensor) but it could also be a bad MAP.

I would also check the wiring close, only takes a mouse about twenty seconds to chew through a wire. BTDT on cars that have sat.
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Thursday, April 27th, 2017 AT 8:18 PM

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