xXxHOLYMANxXx

i have a 99 civic dx coupe. i had a obd2b d16y7 in it that recently started knocking so i pulled the obd1 b18b out of my wrecked 92 civic hatchback and swaped it in. engine started fine in the hatchback but won't start in the coupe. it will crank and sound like it's about to start on occasion with a big backfire like sound but never actually starts up. i checked for spark and they were sparking and pulled injectors out and cranked and they are misting properly. so what else could it be. i didn't mess with anything removing the timing belt or anything so i don't think it would be out of time. i'm using an obd2b p75 with the proper modifications to wiring harness for the sensors and the ckf bypass and removed immobilizer from ecu so need some help on figuring this out. thanks

xXxHOLYMANxXx

bump

xXxHOLYMANxXx

noone has any input?

kyden

are your plug wires in the right order?

xXxHOLYMANxXx

yes. i even changed back to the dizzy that was on the motor and converted it to obd2 plug and made sure i put the plug wires back on in the right order and still not working. i did extending on map, tp, iat, iacv, and on evap wires. any of those cause it not to run if wired wrong? possibility it could be out of time from just sitting in the car for a couple months after being rearended and then being pulled and dropped into this car?

Former User

Bad wiring could prevent the engine from starting.

Any CEL codes?

xXxHOLYMANxXx

i got a solid check engine light from removing the immobilizer from the obd2b ecu. where could i be able to get a obd2 diagnostic computer to check what all codes i have?

dueyx99

plug in the single cam ecu, car should at least start, might run rough

Former User

Jump the service connector ---> see CEL sticky at the top.

xXxHOLYMANxXx

ok so i put a paper clip to the service jumper and the light stays solid. does anywhere rent out the obd2 scanners?

xXxHOLYMANxXx

i would have to move ecu pins around to even use the d16 ecu. had to move fuel pump and stuff. i'm going to go pick up a scanner from advance and i'll see what codes its throwing

d15bvtechatch

iTrader: (2)

i'd like to help but im kinda lost at what your setup is with motor ecu and wiring... can you make the proper list of what OBD series you are and what motor, dizzy, etc. if you have spark and fuel, it must start assuming compression and timing is good...
Something wiring sounds messed up since it was running fine in your old car and you swapped a bunch of electircal and now it wont.

xXxHOLYMANxXx

well the car is a 98 civic hx but due to being wrecked before i bought it, it was rebuilt and they rewired a 99-00 dx obd2b harness in and dropped a obd2b auto d16y7 in. i converted it to manual about a year ago and have been driving it with the d16 in for about 2 months then all of a sudden i got a rod knocking so i decided to do this swap. i rewired the obd1 dizzy to match the obd2b plug using a diagram of what each wire is from a thread i found on here but i can't remember which thread it was. i followed the threads and images provided by katman from ffsquad to do the 3 wire to 2 wire iacv rewire. done the ckf bypass trick, and removed the immobilizer chip from the ecu because obd2b integras have it. extended wires on a few sensors for the intake. wired the obd1 alternator plug to my obd2b harness. also repinned the fuel pump on the ecu because civic and integras obd2b have a different pinout there. the motor is an obd1 jdm b18b i ran in a 92 cx civic for around 2-3 years and it was rearended april 4th so i cut up the 92's harness for the plugs i needed on the obd2b dx harness. the only way i could reasonably see it being out of time unless someone messed with it while it was away being inspected by the insurance company is if i hit something while changing the mount to the si mount. if my codes show up normal (should be throwing both o2's and ecu code where i removed immobilizer) next is checking timing

xXxHOLYMANxXx

anything else needed cleared up let me know.

xXxHOLYMANxXx

ok my actron pocketscan showed 5 codes. p1607-ECM/PCM internal circuit malfunction(expected due to immobilizer removal) p0118-ECT sensor circuit high output p1359-CKP/TDC sensor circuit malfuntion p0113-IAT sensor circuit high voltage p1298-Electric Load Detector circuit high voltage. how would i correct these exactly?

dueyx99

each one of those codes you describe, matches up with the wiring you said you performed, so my suggestion is you go back through what you've changed and make sure you have it right

xXxHOLYMANxXx

i don't really know how to go about getting started on fixing this. i matched the wires the first go round so i'm lost on what i should try. maybe my ground isn't getting good connection on the thermostat causing the p0118?

dueyx99

you could try the ground, clean it up and re attach it, but the codes you are getting are self explanatory, high voltage to the IAT sounds like you maybe crossed some wires between it and the IACV, the tdc/ckp circuit malfunction is just that, it's a circuit malfunction, check for short to ground, or maybe you mixed up a wire between the two sensors, did you solder these wires or did you use marettes? hah

xXxHOLYMANxXx

well i know why it wasn't actually starting after i swapped out dizzy's. i had forgot to plug it back up *smh* word of advice don't buy $95 ebay dizzy's and expect them to work. rewired the obd1 dizzy to the obd2b plug and then when i got home from work i looked under the hood with fresh eyes and noticed the dizzy plug wasn't plugged up. plugged it up and and she fired right up. running like crap but running none the less. got a few different codes this time. gonna see what i can do to get them fixed. p1607, p1359, p1508, p1298, p0135, and p0141. hopefully i can get this thing going. this 351 ford is killing me in gas. i'm used to driving a 1.6 or 1.8 not a 5.8 lol

xXxHOLYMANxXx

i think the p1298 may be from trying to start it last night while the dizzy was unplugged. i'll erase the codes and let it run for a few and see what codes it throws out after

xXxHOLYMANxXx

ok now i'm having other problems. i bought an em1 wiring harness and did the ckf bypass and repinned a16 to a15 so the fuel pump would work with the obd2b integra ecu. bought a new obd2 distributor and bosch platinum +4 spark plugs. plug wires are pretty new so didn't change them. checked timing belt marks to make sure it was in time and it is. it starts and runs but runs like absolute crap. takes a few more cranks than it should to start the first time after not running for a while and it is really hesitant about opening up. it threw a code for engine control unit internal malfunction(immobilizer chip removed), a code for electric load detector malfunction(think the srs light being on is causing that), IACV high circuit malfunction(unplugged it and there was no difference in idle), and throwing code for o2's because neither of my o2 sensors are plugged up because i've not crawled under the car since i put the si harness in and haven't wired in 2nd o2 yet. and i don't have my EVAP sensor on the intake plugged up. i'm thinking the iacv is actually bad and needs replaced but would it cause the car to not run right while driving down the road and stuff or could the evap stuff be doing it? it acts like one would if it was out of time but the timing marks are all right when the motor is turned to TDC. i'm kind of running out of ideas anyone think they can help throw some advice my way.

Bense

try swapping your map and tps plugs?

xXxHOLYMANxXx

the map sensor plug on the si harness is coming through with the IAT plug and the TP is on the wiring with the IACV correct?

V-Nonyak

i recently did my ek b18b1 swap and i had every single problem in the book man so here is my input

i had a bad wiring harness at first changed that then wasent getting fule or pump was not priming as well changed the main relay and did the extra ground on it and then i re wired my injectors and plugged in the dead end connectors on the back of the harness car got fule and primed after that

then it still would not start so changed everything obd2a engine harness obd1 alternator obd1 ecu and obd1 dizzy

after i made my own obd2 to obd1 dizzy conversion harness and put in my obd1 dizzy **** started right up if you have any qustions let me know man i can probly answere anything exept how to fix the iacv cel still getting that lol

xXxHOLYMANxXx

i'm thinking a bad iacv is my problem. this guy's description is dead on to what mine is doing. https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/will-bad-iacv-cause-2459484/ and since it's throwing the code i'm thinking it's the source of my problems