I have a 1991 civic wagon with a d16a6 with vitara pistons and eagle rods. i converted it to multi port injection so i could put my supercharger on it. i drove it for a while with dual port and it ran great. after the conversion its had this problem that has me completely stumped. i start the car and it idles around regular idle rpms. then it revs up a bit without me doing any thing then just dies out. doesnt sputter or any thing. it will stay idling for about 20-30 seconds. so i started just checking random things and i checked the tps and i forgot to plug it back in, so when i started it the car ran just fine and didnt die. Idled smooth and everything. im completely confused so if anybody could give me some advice it would be greatly appreciated. THANKS

 

Use a voltmeter to check the tps voltage. The key should be on with the engine off. With the throttle closed volts should be around 0.45-0.5 and when you manually open the tb to full throttle it should be at 4.5v

 

ok what if it is?

 

If it is then it rules out the tps as the issue

 

alrighty then ill give it a try

 

so im like positive that the tps isnt bad so does anybody have any ideas what it might be?

 

ok....it took forever for me to get this done but i replace the tps and it doesnt die anymore. but it still isnt right. now it idles at round 1300 rpm for bout 30-45 sec. then it idles up to 2000rpm exactly and it has almost no throttle response, and when you do push the gas it almost sounds like its leaning out. any ideas?

 

hello?