Can't seem to get the ph search function working to find the answer to this one but has anyone got a gunsons gastester (not professional)... is it any good?
I had the basic one many years ago. Was kinda ok but a bit plakky and not very easy to get a stable reading off. When it worked it was ok, and when it didnt i kicked it over the shed.......(makes mental note to use shoes with steel toecaps next time!)
I was going to buy one for monkeying about with older engines (mk2 golf gti) which I guess should be putting out about 2-3% co2 and also (mainly) for getting my bec with sva limits which is below 0.5%... would it not be good enough for that?
I used to own one, you have to keep doing a free-air calibration to get good results, you seem to spend more time calibrating the box rather than the carb. I now use a wide-band lambda, but even a narrow band is better than the gas tester in my opinion.