RUZN Posted April 10, 2009 Share Posted April 10, 2009 ok so I did the ECU swap on my 280zxt to a 300zxt ECU I got the Car to Idle around 850-900RPM in trying to adjust the TPS (Throttle position Sensor the small nut broke.. AHHH lol but i'll get that out.) Now before the bolt broke I could gas fairly well we will say 65% throttle but at 100% it would just pop and sound like the engine died but it would just drop to idle till I let off throttle to about 65%.. thus I was speculating TPS still needs to be adjusted. So im gonna go out there with Ohm meter and get it to its 0 to infinity. But could it be because im using a 300zxtt TPS I have another TPS so should I try that one without the extra Pigtail? What dose the other Pigtail do on a 300zxtt TPS? is it for 100% throttle? Quote Link to comment Share on other sites More sharing options...
BleachZee Posted April 15, 2009 Share Posted April 15, 2009 you're probably not getting the "wide open throttle" position sending a signal to the ECU. So the fuel supply is limited, reaches a lean point and makes that popping backfire sound. Who knows what the Z32 TPS has compared to the Z31 or S130. Why use it? Isn't the swap supposed to use the 280ZX TPS and just wire it in? Quote Link to comment Share on other sites More sharing options...
RUZN Posted April 15, 2009 Author Share Posted April 15, 2009 yeah I went to wrecker and got a 300zx TPS that bolts right up to the 60mm TB and t works fine now. Just as I said in other post it seems a taaad rich like its injecting to soo and firing to late or something lol.. I mean now its hauling ass but seems liek it needs to be tuned juuuuuuust a lil bit more cause if I play with throttle like 85% as opposed to 100% I get a nice clean pull feeling where as if I jam on it its kinda like its trying to hard lol Quote Link to comment Share on other sites More sharing options...
BleachZee Posted April 15, 2009 Share Posted April 15, 2009 could be a very small boost leak I had a small leak at one of the injector o-ring seals when I did a turbo L28 engine swap Quote Link to comment Share on other sites More sharing options...
RUZN Posted April 15, 2009 Author Share Posted April 15, 2009 ah also found the capped off Sensor from I believe to AAC or beside that had a small hole in it!!!! lol causing higher than normal idle poop!. gotta plug that bastard. haha Quote Link to comment Share on other sites More sharing options...
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