montanajr Posted June 28, 2008 Share Posted June 28, 2008 Hi - this might be quite long, so please bear with me!I've just got in from the Bluewater meet and only just about managed to make it home! Heres what happened: This morning I went to Torque of the Devil to get my FPR setup for 1Bar. On the way to the dyno I noticed that the car was struggling a bit, like in 1st the revs would suddenly drop and nearly stall. After 10mins of driving it stopped. Got to the dyno, on she went running 15.5psi. But this was spiking a bit and was hitting fuel cut. The tuner asked if my JAM FCC was adjustable. Which it is, so he adjusted the JAM FCC to stop it from cutting. All was good and he did a few runs, he then advanced the timing to see if any power could be got through that, so he did, power increase but det/pinking so he put it back to standard.I left the dyno running 15.5psi with 158hp atf - 133hp atw - 180lb/ft. That doesn't sound right for 1Bar does it ?Anyway, as I was driving back home from the dyno the problem from earlier started again, but it was worse and the car kept stalling and struggling to run. So I turned around and went back to the dyno. The bloke said it must've been due to adjusting the JAM FCC, so he put the JAM FCC adjuster knob back to where it was and decreased the boost to 14psi. It made 150.3hp atf - 126hp atw - 170lbft. Drove home and the problem seemed to dissapear, drove fine, no stalling/cutting out.Anyway, driving back from BW the car was literally fucked. On the motorway when acclerating slowly from 2-4k rpm the car would hesitate and revs drop slightly only for a spit second, but then it got worse and the engine management light came on and it kept nearly stalling. I also noticed that it would only ever do this when I slightly press my foot on the throttle, under full boost it was fine. And when I touched the throttle the boost gauge in the dash would instantly go from fully - to + and my actual boost gauge wouldnt move (as I actually wasn't boosting). So the standard boost gauge would jump to full boost and it would drop in revs to about 1k and nearly stall even though I was only slightly touching the throttle. Kept happening every now and then, but I got it home.Any ideas what the fuck is wrong? I think its something to due with the JAM FCC, happened both before and after my dyno sesh. I think its the JAM FCC because the boost gauge is acting all wierd and engine management light coming on, revs dropping etc - surely it can't be something internally wrong with the engine? No smoke or anything.Help would be great lads/ladies! Sorry about the length, but thought I'd explain properly!Cheers,Chris. Quote Link to post Share on other sites
StarletRick Posted June 28, 2008 Share Posted June 28, 2008 that jam fcc ust be fitted wrong. th car thinks its boosting (the dash lights) when it isnt and the ecu is running it thinking its on boost. more fuel/ignition causing it to run shit. that fcc is affecting the map signal way too much. take the jam fcc off, and see if it still does it, i bet it doesnt. Quote Link to post Share on other sites
montanajr Posted June 28, 2008 Author Share Posted June 28, 2008 100% the JAM FCC is wired in correctly according to this guide: http://www.toyotagtturbo.com/showthread.php?t=11807Earthed properly, connected to a ignition live, and have the wires the right way round. Its nothing the dyno bloke did, as it was like it before. Could it be another shitted up JAM FCC like Al's? I think he was having the exact same problem! Your explanation makes sense, as the boost gauge in dash would jump to full + straight away, and then it just splutters/rpm drops & rises randomly and generally runs like shit. Cheers for the quick reply Rick! I think tomorrow I'm just gonna rip the FCC out, rip the FPR out and go back to 11psi. 11psi was fun, and there were no problems *cry* Quote Link to post Share on other sites
Guest Enzo Posted June 28, 2008 Share Posted June 28, 2008 sell me your fpr! Quote Link to post Share on other sites
montanajr Posted June 28, 2008 Author Share Posted June 28, 2008 lol ok. Just going out to take everything off, will post it up for sale later! Quote Link to post Share on other sites
Starletraje Posted June 28, 2008 Share Posted June 28, 2008 sell me your fpr! you not meant be in oz...? enjoying a holiday?montana thats ish. too bad curing involves loss of boost Quote Link to post Share on other sites
montanajr Posted June 28, 2008 Author Share Posted June 28, 2008 Yeah, back to 11psi ! Gonna feel so slow after blapping about at 1Bar :*( Quote Link to post Share on other sites
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