Problem with rpm's, power and stalling
#1
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Problem with rpm's, power and stalling
Hi,
so I got problem. Let me describe it. Car was standing 3 months without driving, basicly it had one drive, but during this was flodded. It was standing 1,5 months flodded. Finally I had chance to start it - it works. But... from this moment car got problem with stalling. Every time when its warmed up it just not holding rpm's on neutral. Acceleration is also diffrent - from 1st gear the felling is like starting from 3rd. After that is ok, until 4000rpm - then is some kind of parachute, and again after is ok, until 6000 - again parachute. Basicly it doesnt have so much power like before.
Ive read couple of topics here and I was thinking about ignition coils - Ive change them and problem is still exists - just the throttle felling is better, but car is still shutting down after warming up and it doesnt want to hold rpm's. Rpm are jumping when car is cold.
Plugs ? Wires ? Fuel pump ?
Help me
so I got problem. Let me describe it. Car was standing 3 months without driving, basicly it had one drive, but during this was flodded. It was standing 1,5 months flodded. Finally I had chance to start it - it works. But... from this moment car got problem with stalling. Every time when its warmed up it just not holding rpm's on neutral. Acceleration is also diffrent - from 1st gear the felling is like starting from 3rd. After that is ok, until 4000rpm - then is some kind of parachute, and again after is ok, until 6000 - again parachute. Basicly it doesnt have so much power like before.
Ive read couple of topics here and I was thinking about ignition coils - Ive change them and problem is still exists - just the throttle felling is better, but car is still shutting down after warming up and it doesnt want to hold rpm's. Rpm are jumping when car is cold.
Plugs ? Wires ? Fuel pump ?
Help me
Last edited by ramzesgd; 07-31-2008 at 02:52 AM. Reason: mistake
#4
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Yes, I pull out battery when I was changing coils. After that that but before starting engine, Ive pressed brake 20times to reset computer once again... is still stalling on low rpms
#5
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it possibly could still be relearning but possibly an engine problem? bad gas possibly? did you put any fuel stabilizer in it or are you running cheap gas?
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The computer relearning curves should not cause stalls at idle. If you have not changed the plugs and wires since it was flooded, this would be my first course of action. after being left flooded for a month and a half I'd be shocked if the plugs weren't completely fouled
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I have reset my ECU by the 20 brake pump method, and the battery disconnect method. Many times. My car has never stalled because of it.
Any modern car it should never stall, unless because of driver error or mechanical failure.
Any modern car it should never stall, unless because of driver error or mechanical failure.
#10
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when I asked the guy at a garage, he said most modern car would stall if u pull the battery. ECU re-learning. nothing to worry about.
The service manual didnt say anything about stalling, but it did say something about re-learning. so...
whatevaz, idle works after a while. no big deal.
The service manual didnt say anything about stalling, but it did say something about re-learning. so...
whatevaz, idle works after a while. no big deal.
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Guys I dun think ECU is learning. I pull out battery cabel many times - and this issue got nothing to do with this.
Car is stalling, rpms are not stabil, there is lost of power. 40K miles on the clock.
Car is stalling, rpms are not stabil, there is lost of power. 40K miles on the clock.
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Change your spark plugs and plug wires. Plugs will foul if the engine is left flooded. I'd say check the cat as well, but that would only cause problems at high RPMs; Also, you are running without one.
Last edited by Socket7; 08-01-2008 at 11:02 AM.
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No I didnt change those plugs, they r still the same from the flooding. The only thing i've changed are the coils. I dont have cat. Just a resonated pipe.
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I went to Mazda service, they read out codes and they still dont know what can it be . They are suggesting that it can be o2 sensor, after flooding, when I started car I probably melt it. Can this be truth? Car doesnt want to pass 4000rpm. The only happy nesws is that its not a engine
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Computer is showing now that the mixture is not rich enough? Could it be new intake? Maybe is giving to much air compare to poor level of fuel?
Anyone got some ideas ?
Guys, I know there is someone that know something... ? Maybe burned o2 sensor?
Anyone got some ideas ?
Guys, I know there is someone that know something... ? Maybe burned o2 sensor?