PDA

View Full Version : car runs great for 30min's


jdillaard
04-19-2004, 07:47 PM
:hammer: did a SR20DET swap like 3 yr's ago, I have a wolf engine management system (http://www.wolfems.com.au/home) did my swap, wired it up. did some tuning, runs like a bat out of hell (8.4 in the 8th) for around 30min when the engine gets nice a warm (not hot) around 85' C, when it Fucks up; as long as I stay in the boost it will keep running fine, go out of boost it will start running on 2 or 3 cyc's? misses & sputters untill I can get back above 2 grand or so,

Once I can't take it amymore, and pull over on the side of the road.The ecu I have has a kill swicth for the injectors, if I pull the plugs which look fine, kill the injectors & crank the engine crazy ammonts of fuel shoots up for about a 1/2 a sec. put the plugs back in & run it for about 30 more min's untill it does it again.

Any clues, I think fuel system & am getting ready to TS that, just wondering if anyone has run into this before. like I said it's been 3 yr's since I've really got to drive my car. & I miss it

oh yeah it's a read top, greddy intercooler, & bov, apex N1 exhaust & that damn wolfems. it's really not a bad ecu, Ive just had some difficulties with'm

nismofeind
04-19-2004, 09:46 PM
What are you spark plugs gapped to? 3 years need new plugs? Timing checked? I would think fuel system too if neither of those work.

jdillaard
04-20-2004, 02:57 PM
.9mm & 15 Degrees @ idle; my ign map isn't that extreme I actually down tuned the ign a little. yeah I think I tried every kind of plug in the world, surprisingly autolite cold plugs have run the best in it. thank you much for the advice. well look into fuel pressure, & proable just replace the regulator

F3600
04-20-2004, 05:08 PM
Maybe your ignitor chip is not running right when you engine is hot.. try a known working unit ..
good luck

JustinHallenbeck
04-20-2004, 07:25 PM
Sounds like over fueling to me, are the plugs wet when you pull them out. FPR, or maybe injectors. Does fuel spray outta all 4 plug holes? When you get on it you start using more fuel, and you engine isnt running so rich. The FPR diaphram could be getting stuck allowing to much fuel pressure in to the fuel rail.