Local Guru needed to help diagnose problem
#1
Local Guru needed to help diagnose problem
I live in San Jose, just converted to single and Im having problems need someone who knows a bit more than me to help diagnose and brainstorm possible problems with me. Has a bad idle, when under load( driving conitions wont pass 3k RPM in first, 2k RPM in Second. Idle surges. Sounds like a brige ported motor Brap Brap Brap but its stock motor w/~ 25k. Any help will be greatly apprecaited. Thanks
Chris
Chris
#3
K so here is everything. FD Stock motor with ~25k just tore it down about a month ago and it was driving perfect. HKS Tubular manifold, Tial 46mm waistgate, Garret GT35r, 255 walboro fuel pump, aeromotive fuel filter, SS -6 lines, 550/1300 injectors. Sard FPR, MSD wires, HKS twin power, Power FC. Full 3 inch exhaust.
#4
So what im thinking is maybe an injector or fuel issue? I havent changed anything with the spark same wires same coils same HKS twin power so Im thinking that is safe. I just put in the fuel filter but I have proper fuel pressure at start up. Vacuum is so simple now I dont think there is any way that could be messed up. Please any ideas would bve great.
#5
We're All Fkd..
iTrader: (16)
hmmm....damn, is all the tubing good? prolly have to get it tuned..i mean it starts witch is good, but the power fc was tuned for the twins not the single..the injectors are more then adaquate for the setup..be careful you might be runnin to lean and you could throw a seal..also did you leave the sensor on the upper intake mani unpluged? its the one in the middle..it could be interfering with the pfc. theres my idea..
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#6
I downloaded a MAp from a car that has almost identicle mods. The piping is pretty simple and its all t-bolt clamps. As far as the sensor if your refering to the intake temp sensor it is plugged in. Thanks for your input I apprecaite you taking the time to post up your ideas.
Chris
Chris
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#14
We're All Fkd..
iTrader: (16)
why on earth would you do that? i guessing that the emissions are removed? theres only some silenoids that you have to jump..the one for the check engine light and some other on that i cant list or remember, even then you have to use resistors for them not just straight over..its tuning, get it retuned and you will be fine. you might want to invest in one of the steve kahn sessions..
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#16
I have another set of injectors I am going to put in tomorrow. It sounds horrible and wont drive if its just tuning Im not worried I am getting it tunned in Sept by steve I just want to make sure its not anything else. it starts fine, at idle it almost sounds like its has a mis, or running on one rotor. spark is all there, fuel pressure is good, vacuum is correct. Thanks for your input guys. another question is I have stock primaries if I was to reset the PFC to the stock base map shouldnt that help my idle problem idle is idle right? And should I just cut the connection from the wires i jumped?
Chris
Chris
#17
We're All Fkd..
iTrader: (16)
if its running on what you did to the silinoids then i wouldent worry about it, eventually your going to have to do it right to prevent any kind of damage..but other then that you'll be alright..as far as the reset to base map on the pfc i dont see why not but i would set the rev limiter to like 4 grand tho..just to be safe, you dont want it leaning out up top and you popping the motor before steve can get to it..
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#23
Ahh du ma! El Es Juan!
Join Date: Apr 2005
Location: Bay Area, California
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Whatever, I've been out of the rotary game YEARS AGO! Better than checking the pipping right? haha
Exactly, if your leadings work under 3k, wouldnt it make sense to check the trailing (after 3k)?
Exactly, if your leadings work under 3k, wouldnt it make sense to check the trailing (after 3k)?
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