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Discussion Starter · #1 ·
2.2 with +40's AFPR set at 36psi aprox. stock cal, 16psi boost on the 50 trim

lean all the time,o2 is switching back and forth but closer to the lean side then normal. worse when ever it gets into boost. it doesn't go rich when I WOT like it normally would even when not in boost yet.

I get a map code sometimes, but I have changed the map and baro, no vac leaks. 13 I think it was,

any idea's where I should go next? I have a new fuel filter so I am going to start with that I think. started randomly. worked fine, went to a friends, came out, and then when I left it was acting up.
I did get gas today too,about 2 hours prior to that. not at my normal station, but I have gotten gas from there before without issues.
 

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Not into performance but the stock MAP will only read to 14 PSI.
You need to tee a vacuum gauge into the vacuum line before the baro and then between the baro and MAP to be sure vacuum/pressure is correct under all conditions.
Backprobe the signal and signal return line at the MAP and compare your voltage to vacuum/pressure to be sure it is correct and you may have to check the voltage at the controller also.
There is a voltage to vacuum/pressure table listed in "Voltage Tables" in the "Engine Management" section.
This all much easier if you can use a scanner.
 

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Discussion Starter · #3 ·
I know the map can only read 14.7, I have a zenor diode not allowing it to see past 4.3v
I do not think this is my leaning problem because I have had the map code comming and going for weeks and this leaning just started last night.

I am going to go throw the scanner on it and a fuel preasure gauge and take it for a drive and see what is going on with it. for some reason I think it may be as simple as a fuel filter or pump getting weak. even though my pump and filter only have about 8,000 kms on them. before I put this engine in, on the old engine I had ran some used gas out of some cars going for scrap I think it may have just taken this long for the shit in them to plug up the filter
 

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Discussion Starter · #4 ·
problem fixed!!!!!

turned out my o2 wires fell against the exhaust and melted, so I temporarily fixed that untill I grad the new conectors off my parts car.

then threw new plugs a heat range cooler in and did some slight fuel preasure adjustments.

works better then ever, but I can say for sure I need my cal to show up here soon, it is drinking fuel like I do rum
 
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