b16 in 90 integra gs.. No vtec!! Checked and double checked wiring.. Motor was in a 91 civic hatch about a month ago (civic shell is for sale 500 bucks minnesota no rust!!!) Everything worked fine in that... It also doesnt start good. The pump pumps good but only fires, I have to try like 5 times before it stayes running.. When its running it idles at 1500 rpms and slowly creeps up to about 2000 rpms. I already tried messing with the vacuum lines im sure those are right. I adjusted the idle screw too. Im getting very frustrated someone please give me some direction please please please i just want everything to work right!!!!!

 

check your codes

 

there are no codes

 

mister m 83 i need more background on the swap...which ecu are your using?did you wire in vtec,pressure switch?

 

pretty sure its a pr3 obd0 ecu and yes i ran the vtec pressure switch the vtec solenoid and the knock sensor i swapped out the 4-2-1 exaust manifold for a 4-1 manifold off the gs motor so all i did was splice the second o2 sensor to the existing o2 wire

 

I forgot to say that after it has ran for awhile and is warm it starts first try

 

Sorry its a pw0 not a pr3 i just tried my buddies ecu and still no codes... Ill drive it around tomorrow with it and see if anything is better but i doubt it!!!

 

Things to check
1.Have you checked your oil?
2.Is your speedometer working? (vtec wont work under 5mph so if your speedometer isnt working, that could be it..
3. Have you checked the vtec solenoid the screen inside can be blocked causing it not to get oil...

The sporadic idle may be the ivac check that..
Let us know if these things check out ok

J.J.

 

the only thing out of those i havent checked is the screen inside the vtec solenoid but if it worked in my old car just fine shouldnt it work in this one? and the ivac is on the intake right?

 

ive have forgotten to run the ground on the pressure switch before you checked that? and i have also ran the vtec wires and pressure switch backwards before too. just lettin you in on others mistakes.

 

if i have wired then backwards would that ruin anything? and would me grounding it to the tranny ground be ok?

 

when i wired it backwards it didnt hurt anything i just didnt have vtec. the tranny ground is ok but i ran it right underneath the vtec solenoid theres a small screw that holds down the harness there.

 

are you sure your not throwing any codes? is there a bulb for the CEL. It could be the ECU same thing happen to me, vtec wasnt working, ilde at 1500 thru 3k find another good ECU and Dizzy switch them out. Im almost sure that will fix all your problem

 

is the vacum nipple blocked off o ur IM? that could cause the crazy idle.

 

is your map and tps hooked up rite

 

everything is a go on the map and tps sensor

 

someone i work with told me that it could all be my coolant temp sensor thats making it all do this (which ever one turns my fan on) because that doesnt work either. He said that if that doesnt work that it would make my ecu run in a open loop causing it to make it run like its cold all the time??? Any suggestions on that?

 

if you was closer to the city i be willing to give you a hand

 

i would be willing to come to you ro really im only 20 mins from minneapolis

 

but didnt you say that everything worked properly in the civic?

 

yes thats the kicker!!