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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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#1 |
Join Date: Jan 2014
Location: miami fl
Age: 35
Posts: 6
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stock sr20det running lean under load
iv searched and running out of ideas hope someone on here will be able to shine some light on something i over looked its a sr20det with boltons car starts and runs fine i have a apexi turbo timer a/f read 14.00 @1000k once its warm ill go for a drive i dont even get to 1psi of boost and it reads 20.00 on the a/f pulled plugs they are all light white no boost leaks i could hold 10 psi no problem
cleaned and checked maf 2v signal wire 12v power wire (thinking of re grounding )the negative checked tps .40 closed 4.5volts wot fuel pressure 43psi tomie frp adjustable ill give it a quick flip of the throttle and it goes up havent checked under load as the frp is under the hood walbro pump my fuel pump is hardwired with its own relay 02voltge stays @.78-80v @1k under load goes down to .01volts vacuum @1k is 20in put the fogger on the exhust only fog came out of the wate gate dump tube not sealing complete have a apexi avcr injector duty is 85% at 1k coolant temp sensor havent checked but my cluster shows temp so i assume it running correct kinda stuck thanks in advance for your taking your time to read my post any help is appreciated |
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