Idle issues
09-29-10, 07:25 PM
#26
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the maps are not tuned maps for the car...just a map to begin with...wont run good enough to drive...stalls, rough accelerator/hesitation/miss that we cant get rid of...sure u will find lots not to ur liking bc we havent adjust to much on tune yet...but ill try to post them...hope it simple like yall think...fingers crossed
09-30-10, 12:33 AM
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now when you say 40psi at idle is that with the vacuum hose connected or not? that's high if it's connected. To properly set base fuel pressure, get the car running with the vacuum hose to the FPR connected, then disconnect it at the easiest place, set pressure to desired level, then reconnect the line.
edit: you might have to put that 50% back in
edit: you might have to put that 50% back in
09-30-10, 07:53 AM
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it is a stock fuel system... stock regulator...cant change pressure...it is with everything connected...so in vacuum... in the attached map the 50 is in... 40 psi is stock for a stock rx7 fuel system
10-02-10, 04:14 PM
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not gonna be enough, not even close, you're gonna need a higher flowing fuel pump, an adjustable FPR (aeromotive or similar), and probably 1600cc secondaries at minimum.
10-02-10, 06:30 PM
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yeah to get drive the car on the streets with some boost you def. need a fuel system upgrade! But to get the engine running right without serious boost you dont... the car should be able to rev with the stock fuel system in neutral without backfire or hesitation! .... And i think the mapping is too lean throughout!
I had a similiar problem with my old honda prelude! converted to ITB's and ran a miata fuel pressure regulator as i thought it would increase fuel pressure ... instead it decreased and the car wouldnt even rev up at WOT it would just stall ... had backfire... etc. etc.! ... ist not hard to check just increase some fuel % and check if it gets any better... if not then thats not your problem!
I had a similiar problem with my old honda prelude! converted to ITB's and ran a miata fuel pressure regulator as i thought it would increase fuel pressure ... instead it decreased and the car wouldnt even rev up at WOT it would just stall ... had backfire... etc. etc.! ... ist not hard to check just increase some fuel % and check if it gets any better... if not then thats not your problem!
10-03-10, 02:17 PM
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mhhh could be a faulty a/f meter ... or something completely different and im wrong ^^... but its an easy way to check! ... btw... when it hesitates etc. is your a/f still 10???? ... and whats the brand of the gauge
10-11-10, 04:38 PM
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fpr is bad...50 without vac 40 with..even with different source for vac. next step fpr replacement . should fix running rich but idk about lean during hesitation..that may be an injector. so we will see
10-11-10, 04:48 PM
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I've got a stock FPR if you want another one, other wise just order an adjustable one and redo your fuel system so you can run that turbo at its efficiency instead of just babying it around because you don't have the fuel mods to support it.