how many miles before all sensors reset?


Asked by Apr 29, 2015 at 03:17 PM about the 2004 Chrysler PT Cruiser GT

Question type: Maintenance & Repair

Just replaced my timing belt. Mechanic said that it had jumped two teeth! Engine had
come on many times before and made the car run awful! Now new belt and O2 sensor,
water pump. It seems fine, but all my sensors haven't set yet. How many miles do you
have to go before this happens

14 Answers


25-50..all are different..even the same make and year one will set quicker than the other.. i drive them 25 miles,park it, let it completely cool down and do the same thing

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Best Answer

Thanks Kelly I thought so.


I think you are talking about the relearn protocol, that usually takes about 20 minutes of normal driving, as Kelly stated some take more others that less, it all depends on how much work was done and how many sensors were replaced. Now if you are talking about a ECM reset, that should have been done by the Tech after the repairs were finished. So you should not have a check engine light on at all now.

1 out of 1 people think this is helpful.

No lights on right now.........just nervous.


As long as there are no lights chances are good that everything is alright, the light usually turns back on within the first 15 minutes if it picks up on something not right. The rest of the time it is learning the vehicle and how you drive.


papassal1, thanks.also not related to you...,say if you have a dead or replace your battery the check engine light may be off when restarted..but it will still need to be driven for it to reset/learn.hi TS..say lets market a backup battery.


They already make one, it plugs into the lighter or power port and matainains the presets.


i know that...if you know your going to diconect or have a dead battery then great.. i know a little bit about everything..but am only a master at 4 things...dont ask..




Light back on after 50 miles ish. Car stalls. Fuel pump works fine, codes say it's the o2 heater hi, ( just replaced ). Multiple misfires, IAC lo, then won't start or worse just stalls. Insane, spent too much money already. Funny thing is that it ran flawlessly for the last two days? ?


Well now is when a "Live Data" scanner would come into play, that way you could watch in real time everything the sensors are reading. I have found a lot of problems that didn't even turn on the check engine light but just didn't run right.


Guess it's dealership time


A good independent shop should have one of these scanners, you don't have too spend the big bucks on a dealer.


5 months 5 shops, 2 sets of new 02 sensors, PCM rebuilt, STILL get the engine light on after 32 miles that has 2 codes : P 0032 and P 0038 which in my book means High heater curcit bank 1 sensor 1 , and High heater curcit bank 1 sensor 2. SOOOOO, I must have a bare or broken wire in the circuit. Anybody have a diagram of this?

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