ok so the only thing keeping this crx from the scrapper is the fact that the body is mint....here we go

did a headgasket on it today got everything hooked back up......this thing is a frankenstien and i have my work cut out for me so here we go



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ok right now i have red spliced into that dark green color, but the car is idling at 2kish pulsatin every now and then. can somone plz look over what i have there and tell me where im wrong?

also on the back side drivers side of the intake mani theres a sensor that has black/yellow and blue coming off it, they are both cut and i cant find in the wire harness close to it were they were cut from, can anyone help me here?

 

what the hell!?jk the green is to that disk lookin thing right...if so try pluging that vacum line and see if it helps if not then make sure your throttle is closing all the way and adjust ur idle from the screw on the throttle body. and that sensor should be pulling a check engine light .go from there

 

5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
9 CYP - cylinder sensor
10 IAT - intake air temperature sensor
43 Fuel supply system


hrm.......

 

haha!ok 9 is something wrong in the distributer.what motor is it.i think the ait is a odb1 thing.im not sure though...your map sensor is probibly not connected to the right port or the sensor is bad(i guess the second nipple on the tb might help)...and if that nipple is open source then plug that and that might just fix it all...ya check for vacumm leaks first...

 

water temp sen.,is it reading cold all the time

 

and i wonder if your rowting of the lines is wrong and raw fuel is being sucked into the manifold...post a pic.(no drawing unless u work for haynes lol)

 

based on your sketch, you have an 88 Si with 89-91 D16A6 engine (or at least the 89-91 intake manifold) - is this correct?

i assume that the oval in the sketch on the left on the firewall is the MAP sensor? don't know what you are showing on the far right? - see diagram below for vacuum line routing

the solenoid just to the right of the MAP on the 88 Si is the dashpot control solenoid which isn't used on the 89-91 - get rid of it for the 89-91 engine

the solenoid just to the right of that is the purge cut-off solenoid - see diagram below for vacuum line routing

the sensor on the back of the intake manifold is the Fast Idle Control Valve - the 88 Si didn't have a FICV which is why you don't have a connector for it - the black/yellow wire is power and can be spliced into the black/yellow that goes to the EACV - the blue needs to run to ECU pin B2

FYI - if you have the PM6 ECU, you cannot have a code 43 - OBD0 D-series ECUs do not have long and short flashes, only short - you can have only codes 1 thru 20 - the ECU will have all short flashes for each code, i.e. for code 15, the ECU will flash 15 times, for code 17, it will flash 17 times, etc.
the vacuum line diagram for the 89-91 D16A6 looks like this:



the vacuum line diagram for the 88 only D16A6 looks like this:

 

thanks for that ill fix the vac lines accordingly

but ithink i found my major issue, apparently theres a pr4 ecu in it, now im no rocket scientist but dohc ecu's shouldnt run sohc motors right?

 

it will run, just rich. and timing maps will be off...

 

PR4 would give you a code 43 - it has long and short flashes - you would be a lot better off with a PM6 ECU

 

its running just idles at like 1900 then will dip 100 ish and come right back up, almost like its 2steping.

i majority of these issues are lying in the ecu right now

 

ok i undid the dapshot completely and ran the vacuum lines per 89=91 manifold and now it wont start just turns over....hrm

 

wont start with the vacuum lines either way.....wierd, and i have no cel codes on the ecu now

 

lmao.dude what engine,head distributer do u have?i think that b4 all u had to do was put the right ecu and adjust the idle...now i think the ecu fried cuz theres no comunication...make sure all ur grounds are making contact and present...and y not get the right computer for it b4 u **** more **** up.(not being a dick thats how i talk)...also since you did a head gasket are you sure your timing is right(so many questions)

 

ya ecu is cutting on and off

its got an msd dizzy cap and a msd 2 coil blaster thing, i reset the timing today just to make sure that wasnt it....... time for a tear down and rebuild?

 

and its a b1 block, i think an a6 head