v8dats Posted November 14, 2001 Share Posted November 14, 2001 ok guys heres what i've done.i saw an ad for a 74 260z .i went and saw it at an impound.it turned out that it has an 83zxt engine in it along with a fuel cell.everything seemed to be itact so i put in my battery and turned the key and the huge fuelpump starts pumping but the engine wont turn;so i leave the ignition on and stick a screwdriver on the solenoid and it turned over and kinda sputtered for about a second then it died.so i offered the guy 350 for it and took it home (with tittle).the car sat for a little longer until last night i took it to my buddys garage to work on it(at his house).when we were working on it we found a couple of switches mounted where the ash tray would have been.so we keep on looking and we find that it has the started button hidden behind the ignition switch,and a manual control valve on the left side of the steering column.i flipped all the switches on and pushed the button and the car turned over and back fired like a mutha.were are getting fuel cause i pulled the injector and we have spark at the plugs.what is my problem?it also has a vacuum pump running when the ignition is on,huge down pipe and 3inch exhaust with a stock muffler.was this guy going for the sleeper look? Quote Link to comment Share on other sites More sharing options...
v8dats Posted November 14, 2001 Author Share Posted November 14, 2001 when i pulled htu plugs they were wet from the fuel.i cleaned the plugs and turned hte engine to see if it has spark and it did.i have fuel,spark and air wheres the boom?i am going back to the garage with my manual to trace every wire,relay,connection.i just wanted to know if anybody had these symptons when convertin and if it was something obvious.p.s the spark was kinda weak. Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted November 15, 2001 Share Posted November 15, 2001 There's no telling; when someone alters a car like that...it may have been to obtain the sleeper effect or it may have been to bypass relays that have failed & the previous owner couldnt afford to repair/replace properly. There's no telling what has been done or what other hidden switches are in/behind the dash or under the seat??? Then throw in a turbo system that may not be working correctly either(?); who knows? The only way to determine what is what would to be to get a factory service manual & begin testing each component of the ignition/fuel circuits...ONE by One by One, till you get it running. Start w/the battery & trace the ignition circuit till you've confirmed everything is accounted for & working accordingly. Do the same thing w/the fuel circuit. If you are cirtain you're getting fuel then the only other unknowns would be ignition or air. An engine needs three things to run; Fuel, Air & Spark...and it needs all three in an appropriate measured amount. Happy Hunting. Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
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