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is there like a voltage regulator? I'm having some weird power surges.

1988 7mgte idling around 1k normaly it'll burp and drop to 7 or 800. when I'm wot I can feel it hesitating like a missfire. It also look like when I hit the throttle real quick I'll get a burp and my narrowband o2 gauge reads lean. What in the hell do I check first? I didn't store any codes, and...

bad afm right? well I switched out the electronics with a new one from a lex and i'm still having the same problems. what do I fix next?

which lexus' came with the larger AFM?

code 31 afm signal wtf?

I can't get past 10 psi, sometimes at 10psi. I've just replaced the whole IC assy. with cooleeze/spearco rep. I've re-re checked all my IC pipes and everything is tight including the vacuum lines and plugs. Could the TPS cause this? I've also noticed that the flange for the SSQV BOV is lose...

not that impressive I know but hear me out. I was leaving the local ricer meet, and a blue late 90's mustang with racing stripes pulls up beside me, loud exhaust v8 no doubt. we're rolling down a 40mph road that just had a 3 person fatality as a result of racing so there's no way in hell I'm...

I put her down for some new bits (86.5 gte swapped) intercooler, pipes, nothing major, probably hasnt' been run for 6 weeks now. but now she wont start. I can get her to fire with starting fluid but not for long... what's the checklist of probable culprits? I noticed I am missing a esc fuse...

let me start out with what I've got. 86.5 gte swap, P&P head everything, na cam, EBC (@ 12) 3" from the turbo back... looks slow and shitty. theres this meet around the corner from me that I frequent, way more bullshiting than racing going on, and it's roll racing when it happens. Anyways this...

I've got oil comming out of the drain hole real bad, like to the point where my clutch sometimes slips. I've FIPG'd the oil pan and put in a new RMS some time ago but it still leaks... it leaked like this before I had installed the 7mgte so could something on the tranny side be leaking or...

does it connect to the stock sending unit and how? What type do I need Like "Short Sweep Electric" or something?

yes I know it's been discussed before but I just want to clarify. The top 2 lines go to the valve covers and the bottom line goes to the accordian pipe right?

I bought an autopower rollcage which didn't fit to begin with, now I'm being told my harness bar is too low and therefore dangerous? any suggestions? would it be safe to get another bar welded higher or would my only option be to get another roll bar

Is there a voltage regulator? I'm @ 14v sometimes and it'll drop down to 11 and the battery/back light light up on the dash. My turbo timer flickers off like it looses and regains a signal and my alarm will go off randomly, sometimes while I'm driving. I've picked up a multi-meter but I have no...

I've gotta SAFC-II here, greddy EBC, and a FCD (OMG RUN!) engine is ARP'd with new head gasket at alot ft/lbs. otherwise it's pretty much stock. Should I "tune" it (I, as in have them) and what should I tune it too? I have no fuel mods (stock injectors/pump/regulator)

how do I remove it? It likes to go off at weird times for no reason. I think it's a result of either my weird acting turbo timer or the charging problems I seem to be having.

60" - 2.27 1/8 - 9.3 @ 80 1/4 - 14.25 @ 102.2 feels like I should have been shifting earlier.... should've been 13's, starting to wonder if I'm getting blow-by from valves or rings could be going out, hopefully I'll get a leakdown test here pretty soon to figure out what the hell. also I...

so the nipples on the top of the valve covers should not be releasing any gases? cause I put a remote breathing catch can on it and she starts fuming after I've been driving awhile. it's a JDM motor so I figured the rings were good, but the head has visited a shop for a valve job and P&P.... did...

ok I had read something on here about loosing compression and other bad things when using a synthetic in the motor. I returned a whole bunch of redline to a store here and almost got chased out of the store for believing it may do more harm than good "what do you think they put in airplane...