87jct90

I do not know anything about tuning and widebands and have several questions.

My car needs to be tuned with what I am running.

My first question is does my car need to be retuned for running the car in the winter and for when I run it in the summer. If I have the car tuned on a hot day does that mean that the tune will only be good between certain outside temps?

My second question is, if I bring the car to be tuned by someone, do I need a wideband o2 sensor or will they use their own? If they use their own do I still need a wideband to make the car run right with their tune?

My third question is how hard is it to tune a car yourself?

Iam Broke

A. If tuned properly by a competent tuner, your fuel trims (if left enabled) will compensate for temp changes.

2. Dyno tuners normally have a WB they insert into the tailpipe. I would recommend a WB gauge for peace of mind in a column or pod mount if I were you. I use an Autometer Cobalt Lambda/AFR gauge (bosch sensor) in a pod mount with the analog output for tuning. NGK is the choice of many tuners for it's reliability, but IDK if they have a gauge setup or just a WB with an analog output for tuning.

D. Steep learning curve. Unless you have a lot of time and talent leave it to the pros. Find a good tuner that will properly adjust VE and MAF tables, not just rape the Power Enrichment (PE) to get end results. HTH

87jct90

Thanks for the info. What is a better type of tuner to use, one that tunes on a dyno or one that tunes on the street?

I am not looking to race the car but rather use it as a daily driver. Someone told me that if you go to a dyno tuner they will just tune the car as if you only drag race and not for everyday use. Is that true?

Iam Broke

Mostly, yes. They tune WOT for the most part. Some are more thorough than others and will work on the midrange, ect.

A combo is best of dyno & street tuning IMO, I have no dyno access close to me so I street tune and do the WOT in third in a deserted place.

Sarg

iTrader: (6)

I have yet to tune a car on a dyno, loaded or not, that did not require some good tweaking on the street. I am doing a combo of street and track for my tuning.