92_DB2

I just swapped a b16a2 into my gsr DA. I used the b17 intake manifold on the swap I am having problems with a idle surge it didn't do it while the b17 was in it. The surge goes from 1000 to 2200 and it has a delay when i let off the throttle while crusing. There wAs a few differences between the two motors like I had a few extra sensors on the b17 that I had to transfer over one that I didn't like was the two male coolant passages that were on the intake manifold, one to the head and the other to the water jacket. On the b16 it was missing the port on the water jacket so I plugged up the bottom one. Its not throwing any cels it runs fine other than the idle and the coolant was burped properly. I'm gonna dig in deeper tomorrow but im leaning towards the iacv being bad but I will check all the vacume lines

vshavoc

Get wiring diagrams and make sure you plugged everything in right. Check for vacuum leaks too.

IVI

double check the wiring. some of the sensors have plugs that will fit others and not throw a check engine light.

92_DB2

Ok i failed to mention that the motor did this on the previous owners car so i checked all the sensors and found out that when i unpluged the coolant sensor for the gauge it idled around 2000 stable but i couldnt see what my coolant temp is so i plugged it back in. im about to go replace it ill update once im done

92_DB2

Anyone have any insight? I would like my car to idle like normal again

92_DB2

i just routed the lower nipple off the intake manifold back into the cooling system. I find it rediculous that no one has any ideas on how to help me but guys will comment all over some stupid question like hey where do i find a gsr block

92_DB2

I also disconnected the fitv and that didnt help it did the same thing but i dont really know the function of the fitv

DirtyDA9

Use carb cleaner and spray lightly around the intake manifold and vacuum hoses to check for a vacuum leak.

ng8650

Quick question: What type/kind of ecu are you using? Chipped? If so, what basemap?

Ng

DirtyDA9

basemaps.

92_DB2

Stock p61. I checked out the vacuum no problem I just tried to crank it after letting it cool went to leave and the starter just clicked and smoke came from the dash. Wtf is wrong with this car

DirtyDA9

Wow, main relay or ignition switch is shorting out or something.

el crapitan

i was scratching my head a bit lastnight, trying to figure why the car would idle at 2 grand steady with the temperature sender disconnected. it just dawned on me. you must have disconnected the temperature SENSOR. not sender. the sensor relays coolant temperature to the pcm and the pcm adjusts fuel trim accordingly. with it unplugged it's probably defaulting to a set parameter. when you disconnected it, did the temperature reading on the gauge go to full hot? probably not

either way, something has shorted out now. that's why smoke is billowing out the vents. the current draw from whatever has shorted must have been great enough to remove enough current from the starting circuit to not allow it to operate. either that, or the short is in the starter circuit
check all your fuses. see if any blew. that'll tell you which way to turn to track down the short

92_DB2

I'm gonna look into that tomorrow. But I pulled the wire out of the single prong temp sensor for the gauge when it was un plugged the gauge was at cold. Thanks for the response

el crapitan

ohhh ok. yea the single pin is the sender. strange. i wonder if something was shorting to the sender circuit

DirtyDA9

Oh I thought you meant smoke was coming from under the dash. You meant your vents?

92_DB2

I have no idea. And yes smoke was coming from my dash

DirtyDA9

Uhhhh, vents or under the dash? You didn't clarify lol

92_DB2

Oh under dash and behind the gauge cluster mostly.

DirtyDA9

Either the main relay or ignition switch. But if the engine isn't cranking at all, not even a click, it is the ignition switch. Main relay- engine will still crank, but no fuel.

92_DB2

Ahhh thanks for the pointer the wierd thing it the starter would click but not crank and I know for %100 that the battery isn't dead

DirtyDA9

Bad starter relay/solenoid. But that wouldn't cause the smoke, you just have a wire shorting out to another wire, a short to ground wouldn't cause smoke. Have you noticed when you press any one button two things go on?

92_DB2

Yep its a bad starter tried to jump it and nothing. I am kinda done with this car for a while im just gonna drive my daily till i have the patients to deal with it.

DirtyDA9

So you just put power dirtectly to it and it did nothing? Salvage yard, it will be like $30, don't give up hope!!!

92_DB2

Exactly what I was thinking. I didn't give up hope just ran out of patience for this weekend