1jz running rich after single conversion at first start up
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1jz running rich after single conversion at first start up
So i recently did a single conversion on my 1jz and now it runs like ***** until it gets to operating temperature. My wideband shows it running at like 20 afr for probably the first 2-3 minutes of driving. Its almost like the ecu has to reprogram the tps every time i first start driving. It bogs and sputters up to about 50% throttle and after i get past 50% it runs like a champ and no problems till the next time i shut it off. Do you need a different map sensor that reads lower vaccum and higher boost after a single conversion? Is this dangerous for the engine running that lean at low rpm (no more than 2500-3000) for a minute or two, i make sure to not run higher until it resolves? thanks in advance.
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kennymahr
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12-07-16 09:39 AM