Start//idle problems

[240tst]

Hey guys

I have a 93 240sx hatchback....just finished doing a dual cam s14 ka24de swap... The motor was running in a friends 240 before and I know for sure it had no problems...after everything was finished I went to start the car....it would start then idle at 2/2.5 rpms then go up to about 3.5 rpms and then just turn off....I checked pretty much everything I can think off....

Does any one have any clue what might be wrong...

Is it the idle control valve...

Could be a ground wire somewhere that I missed...

I mean I know the motor was running fine before so it had to me something I did or didn't do...

Please any help will be greatly appreciated....

[Hoffman5982]

Check the grounds, just to be safe. Check timing with a timing gun. Maybe replace the spark plugs, wires, and distributer?

[silent_elite]

make sure your dizzy timing is set right and then go to your tps and make sure thats good. test it with a voltmeter and there is a screew right above it you can loosen to adjust it. turn the car on and mess with the tps and get it to idle around 800rpm.
http://www.240sx.org/faq/articles/throt ... djustm.htm

[OutToWinPAHC]

Could be a coolant temp sensor causing the ECU to think its much colder so its in warm up mode.