B16 problems

[shatshadarach]

I just finished putting a b16A 5 million series in my 1990 Si hatch. It has a couple problems though. It idles kinda funny, really really small surges, about the same kind you get when your alternator kicks in an out, but its really frequent like if you were to count "1 2 1 2"...it also hesitates above 4000rpm, even when cruising on the hwy, it also seems to be starving itself at idle...the tach goes all fluttery above 4000rpm, the motor doesnt get all jumpy with it...i cannot figure out whats going on...i took apart the dizzy thinking it was that (cause of the tach), but the tach looks like its brand new inside, all the wires and other stuff checks out ok (with ohmeter)...its got new pugs, wires, dizzy cap n rotor...so i dont think its that...one thing im guessin is it might be my fuel line, i used the stock d series one, should i be using one from a teg?? i really need help here, i dont want it to die one day million miles from nowhere, you ever seen what having a lowered car towed can do...scrape gouge scrape....

[EightOhOne]

you might wanna check your vacuum lines for any leaks, unplugged hoses etc. that might be whats causing the idle problems. is the ecu throwing any codes?

[shatshadarach]

an update...it still runs kinda funny, until it warms up, then it idles perfect...im stunned, i checked all my vacuum lines, there arent any leaks i can find, and everythings got vacuum...im gettin a new tach tomorra, so if the new one does the same thing the stock one does, i guess my dizzy's spanked...if not, then my dizzys good...maybe i just stress too much....

[difvision]

I have a similar problem and I have not found the solution. But I have been recommended to check the sensor grounds (by the lower radiador hose, on the engine side), or maybe the distributor. Also I have been recommended to try 90 integra fuel pump, map and tps, but i believe this is not the problem. Try the grounds and if you have any luck please post again.

difvision

[wickedplastikman]

i have seen a post on another forum called "fixing an erratic idle"

its on the home page on the right side. maybe that will help.

[90civicracer]

Holy crap, this thread is back from the dead. Im sure after more than 6 months if he was still having this problem he would have posted in here about it.