RuffRhyno

Just swapped in the motor, here is my setup:
1991 Honda CRX DX
1997 B18C1 (GSR) motor
JDM S1 tranny
Zdyne 2 wire (GSR) conversion ecu, which is basically a programmed PM6; it recognizes and operates the secondaries and the IAB sensor

First of all, I went to start the car, but it would only crank over. I looked at teh ecu and it would flash 4 times. So I looked it up, a Crank Angle Sensor code. I remembered a past problem that a rexer had where he had the 2 white wires (one thin, other thick) on the distributor plug mixed up in the MPFI conversion and that gave him problems. So, I switched the wires and went to start the car again. It cranked over, but this time it sounded like it was trying to start. The car kinda of mis-fires, but won't start. And the ecu is still flashing a code 4. Anyone can help on this?

There is fuel getting to the injectors, I know of this. One of them wasn't sealed properly and fuel started spewing out! Then, one of the lines isn't on so tight and it leaks fuel every time I go to start it. I have to get a hose clamp .

I replaced the spark plug wires and plugs. I am suspecting spark, so I will check to see if it something with the distributor.

Help guys!

Mikey3000

take off one spark plug wire at a time, hold it up against a valve cover bolt and check if you can see spark. if you do, then obviously you're getting spark. try it in all 4 though just in case. if you're getting spark in all, then your dist. is screwed from the code 4 unless there's something in the wiring that i don't know about.

RuffRhyno

I checked the spark plugs and all 4 are getting spark. I am stumped. Could my wiring be wrong? I know that I am getting fuel, it was coming out of the #4 injector. I figure that even if 1 or 2 of the injectors don't get fuel, it will still start up (run shitty though). All it does is sound like it will start, pop and flames will shoot out a bit (due to the fact that there is no exhaust manifold on there besides the upper half.

RuffRhyno

This thing is just backfiring like crazy. It dumps the fuel in and flames come out of the exhaust manifold while it is trying to start up. I have checked the grounds, and they seem good. How many are there supposed to be and where are they all?

I am thinking maybe the ignition timing is off. How can I go about checking this from the dizzy?

slammed_93_hatch

i had my motor tunned and the guy said that i can check the time with a plug un ther passenger side dash don't know anymore info then that

deez92

make sure your spark plugs are right

tinkerbell

you should check your camshaft timing first,

then your distributor timing...

t..

Kamin

yep
i was gonna say make SURE the engine is at TDC, then check your dist timing.

you need to clear that code first...

97hb

Make sure the MAP and the TPS aren't switched.

RuffRhyno

In regards to the MAP sensor and TPS sensor being switched, here is the thing. My CRX has the MAP sensor mounted on the firewall. The B18C1 has the MAP sensor on the throttle body. I was told to just disconnect the one from the firewall and just plug it into the GSR one. Is this correct?

tinkerbell

that sounds fine but you will need a workshop manual to check the camshaft timing - which is what your problem sounds like...

did you or anyone else take the timing belt off at any stage???

t..

thecorey

sounds like cam timing is off

RuffRhyno

No, the belt seemed new so I didn't change it. Since the motor is in the car it is difficult to get to everything (damn tight CRX engine bay). What I did was took off the valve cover and upper timing belt cover. I then took out the spark plug in cyl # 1, and I placed a long screwdriver to rest on the top of the piston. I then rotated the crankshaft pulley nut until the 2 cam gears were at TDC, both aligned right. The screwdriver was also at it's highest point, which menas so was the piston.

Did I do this right? It appears that the timing is set right. My next step will be to check the wiring, even though I know it is right. Even if the wiring is screwed up somewhere, wouldn't the motor at least start?

Kamin

ok
heres an easier way to do it
take off valve cover
take off plastic timing belt cover
look for arrow marks on each timing gear > <

eg6ajk

what distributor are you running?
hopefully its non-obd b16a dizzy, otherwise thats your problem, along with teh fuel injectors which need to be non-obd type

blufke

when we did my b18b into 92vx we messed up the plug wires, we had them wrong because the HELMS MANUAL HAD THE WRONG FIRING ORDER , for the dist. at least. once that was fixed it fired right up. probably not your problem but check to make sure. the chiltons had it right.

tinkerbell

check the simple stuff as well!!!

it IS a timing issue...

t..

RuffRhyno

I am using a B16a distributor and fuel injectors, both OBD0.

I decided to check the fuel injectors and see if they are all spraying, but only one was. So, I checked out my wiring again, everything was good. EXCEPT, the ecu wiring was all screwed up. It turns out the guides I was using had the pinouts numbered differently, so the wires weren't run to the right pins. I will attempt to backtrack and re-wire everything. I just don't understand why it was only throwing me a code 4 if everything was screwed up.

I also took off the valve cover, upper timing belt cover, and turned the crank pulley until both gears had the arrows pointing upwards. The piston was also at TDC, b/c I place a screwdriver into the spark plug hole. So I do onot think it is the timing that is wrong.

Is there a way I can see if Distributor I have is an OBD0 SI one of a OBD0 B16a one. Maybe someone screwed me over and I have an SI dizzy.

The details of my wiring and pics are located here:
http://hafountain.tripod.com/mpfigsr.html

How does the firing order go? Does anyone have a diagram?

tinkerbell

bummer

it is always the simple stuff that ruins your day.

now it is a wiring issue - it seems you are on your own...

back track and re-wire, its all you can do

what ECU is it?

timing sounds OK,

t..

RuffRhyno

I have reached a breakthrough in my progress...

After discovering that only one fuel injector was spraying I took a look at my MPFI wiring. It turns out the guides I was following had the pinouts numbered differently, so I corrected the MPFI wiring and that corrected the codes.

The motor still wouldn't start up.

So, I looked around and realized that the spark plugs weren't plugged to the dizzy in the right firing order, contrary to the manual that i have.

I correct them, and then go to cank it up and...

SUCCESS!!! At least for a bit. The motor would only rev to about 600rpm, then it would shut off. The highest I got it to rev was about 1500rpm, and now it averages 1000rpm. But, even if I have the accelerator pressed down it will still shut off.

Now I am clueless on what it could be. Anyone experience this problem?

Could it be something to do with the gas? I have the front end sitting on jackstands, on an incline. Is this too much for the fuel pump to start the motor and sustain its idle? Maybe the gas is low? I have a can of premium that I have added to it, and that seemed to help for a bit, b/c it revved up to 1500rpm. HHHmmmm


[Modified by RuffRhyno, 4:28 AM 8/28/2002]

Malachi

up, mines kinda doing the same thing. i had it running 2 days ago. now after changing nothing it wont start. just keeps cranking. i have no idea what to check. seems like a fuel problem to me since i have spark.

RuffRhyno

I checked mine and figured out that my wiring was all off at the ecu pinouts. I followed the diagram wrong, and had the pins numbered from the opposite side. After fixing this problem, it cleared up.

Malachi

awesome mines running now too. now if i can figure out why it doesnt go

99_SH

now it sounds to me like a timing issue. I'd get a timing gun, and see if everything is firing correctly.

RuffRhyno

No, the timing is perfect. I found out that it was the TPS wiring. When doing the MPFI conversion, you are supposed to switch the 2 outer TPS wires with each other. But, the GSR has a kind of "upside down" tps (like the DX), so I got the car to run properly when I switched the 2 wires back. My car runs and idles now, but my MAP sensor is bad.