Front o2 sensor reconnected, tunning requird? - Subaru WRX Forum
 
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#1 Old 09-09-2013, 08:29 PM
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Front o2 sensor reconnected, tunning requird?

I bought a 2006 wrx two weeks ago, my mechanic reconnected the front o2 sensonr back the engine light is gone and the cruise control aint flasing anymore, the owner before me said i have to tune it. Do i have to really tune it back?will something bad happen? got qouted $350 to tune it.
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#2 Old 09-09-2013, 09:19 PM
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You asked this question before and I answered it in your other thread. No you do not need a tune


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#3 Old 09-09-2013, 09:20 PM
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Quote:
Originally Posted by subiejerry View Post
I bought a 2006 wrx two weeks ago, my mechanic reconnected the front o2 sensonr back the engine light is gone and the cruise control aint flasing anymore, the owner before me said i have to tune it. Do i have to really tune it back?will something bad happen? got qouted $350 to tune it.
What other parts are on it? Maybe he meant that it'll need a retune because of the parts that are on it are causing it to run like s-h-i-t.


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#4 Old 09-09-2013, 10:11 PM
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Why was the front sensor not connected? That sensor is essential for the operation of the car. It's not like the rear sensor which is only there for emissions. When you go into open loop (boost), that sensor is what tells your car how much fuel to use.
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#5 Old 09-10-2013, 07:50 PM
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What other parts are on it? Maybe he meant that it'll need a retune because of the parts that are on it are causing it to run like s-h-i-t.


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oh ok, well the car has vf39 turbo,invidia n1 turbo back exhaust with downpipe,bov, grimspeed boost solenoid. the guy said that if i was planning to reconnect it to tune it ### it was gonna run weird i havent yet ran the car expect to the gasoline station and it was running smooth
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#6 Old 09-10-2013, 07:51 PM
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Why was the front sensor not connected? That sensor is essential for the operation of the car. It's not like the rear sensor which is only there for emissions. When you go into open loop (boost), that sensor is what tells your car how much fuel to use.
he didnt explain why all he said was that his tuner disconnected it for the tune he had which idk what it was, but since my mechanic put it back and resest the ecu will i be fine to drive it?
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#7 Old 09-10-2013, 07:56 PM
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You bought a modded car. Get ready!
What BOV? Recirc?
What size injectors? Pump?
What kind of tune do you know of the car having?
What IC are you using?

I hope you have read up enough to understand what I'm talking about before you pulled the trigger on this thing
Those mods need a tune or your looking at blowing it up and it will in fact not run correctly without one.

You need a good tuner, not a mechanic. You already have a few mechanics of sorts right here

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#8 Old 09-11-2013, 11:52 AM
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Quote:
Originally Posted by subiejerry View Post
he didnt explain why all he said was that his tuner disconnected it for the tune he had which idk what it was, but since my mechanic put it back and resest the ecu will i be fine to drive it?


If he removed the FRONT sensor to run tune it, then this "tuner" shouldn't even be allowed to sit in the front seat of an internal combustion powered vehicle and the tune he put on in absolutely must come off.

If he removed the REAR sensor, whatever.

If the front sensor was removed, you bought a wreck.
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#9 Old 09-11-2013, 12:18 PM
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If he removed the FRONT sensor to run tune it, then this "tuner" shouldn't even be allowed to sit in the front seat of an internal combustion powered vehicle and the tune he put on in absolutely must come off.

If he removed the REAR sensor, whatever.

If the front sensor was removed, you bought a wreck.
He said his tuner disconnected it for the tune he had, I tried to contact him to ask him what tune it was but he hasn't answered, I drove it for a week with the front o2 sensor disconnected and was giving me bad gas mileage, I had my mechanic reconnect it and the engine light and cruise control are not appearing anymore , since my mechanic had the ecu reset , will I be fine or still need a tune for that?
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#10 Old 09-12-2013, 11:04 AM
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The car will need to be retuned by a competent tuner assuming no damage has already been incurred.
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