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DATA LOG sensors going wild
Posted: Tue Jan 02, 2007 11:32 am
by cardinal811
When I turn the to power on but not to start my sensors are fine. I was running Hondata S300 on my H22A EG N/A but I pulled the motor to rebuild for turbo. While motor was out I relocated my external coil to the rear of the engine bay just under the battery box and I put the motor back in just 4 days ago. I hooked the stock ECU "P13"up to the car and would not run but turns over. I pulled the plugs and they were saturated with fuel. I cleaned them and disconnected the battery along with the injector resistor pack, hooked up the hondata S300, reconnected battery, put FRESH plugs in and just cranked on it and it tried to fire. I connected the resistor pack and it fired up but wouldnt idle, I gave throttle and it would rev to about 4 grand and 2 grand and it all seemed fine. I let off throttle and it died. Again I checked all grounds"all three of them" on the Block and they are new and fine. HELP SOMEONE
Posted: Tue Jan 02, 2007 11:34 am
by cardinal811
Could it be EMF's from the coil being so close to the wireing harness. Cause thats all that has changed in the engine bay.
Posted: Tue Jan 02, 2007 11:41 am
by Spunkster
Try a stock ignition system.
Posted: Tue Jan 02, 2007 12:03 pm
by cardinal811
Thanks for a quick reply, I ran the car with the S300 like 6 months ago fine with the extrenal non stock coil fine. I was running 11:1 compression can produced 243hp and never had an issue with them all bouncing around. Perfect example is that it says I'm running 23000rpms, map is 267kpa and ignition advance is at -4' to 92' and injector duty cycle bounces from 20% all the way up to 176% all at idle for about 10 secs and dies from all the fuel. Took the top of the intake manifold off and each runner has fuel rivers in it. Cleaned all that out and put H22A4usdm injectos in and got the same result. I'm lost, had 4 different tuners with S300 look at it and we are all stumped. EMF's maybe from the coil? Anyone know how to measure for emf's. ELECTICAL MAGNETIC FIELDS
Posted: Tue Jan 02, 2007 1:06 pm
by cardinal811
also some extra info, I loaded the GSR usdm map and it turned over but died again after about 10 sec, flooded intake again, new plugs are saturated, and when I went to the engine bay just after trying to start I heard a loud humming on top of the motor, IAC is the culprit of that, is the humming from it staying open or closed? I disconnected that and also turn it off using the Hondata S300. Tried to restart with some cleaned plugs and got the same results. GRRRR someone have a gun
Posted: Tue Jan 02, 2007 1:44 pm
by Spunkster
Try your ecu in another vehicle. If it works fine there, then you have narrowed it down the wiring in your vehicle or your ignition system.
Posted: Tue Jan 02, 2007 1:56 pm
by cardinal811
I'll try it. Man the help on here is awsome. I'll be back gotta find someone that will trust me that has not already heard of my issue.
Posted: Thu Jan 04, 2007 3:32 am
by cardinal811
I relocated the external coil to the original position and turned over the car, fired up but still no reaction from the throttle to rev it up, plugs 1-2-4 were saturated and plug 3 was covered in black carbon. I shined a light down the plug holes and I see lil specks of fuel resting on the pistons, but the fuel is a darker color than anything I've seen. OLD GAS? the car has been down for 6 months but I just refilled it with 110 oct gas from speedway before pulling motor. HELP again please
Posted: Thu Jan 04, 2007 10:56 am
by Spunkster
Have you tried my suggestion?
Posted: Thu Jan 04, 2007 12:42 pm
by cardinal811
It's weird, I cant find someone that I know that has an obd1 honda/acura. Still searching though. I have a 98ex civic as a daily but no obd2-obd1 adapter. grrrr :evil:
Posted: Fri Jan 05, 2007 2:03 am
by cardinal811
OK I hooked up the stock ecu again, put in clean plugs and tried to start and once again I got the same action but I tooks pictures to see if anyone can identify my problem. It's got the same HASport engine harness for a H22A, MSD ignition, crane cams external coil, with a new rebuilt H22A 9:1 compression, and when I try to start I get fuel in my runner system, but the first time I tried to fire it up I got cloud of smoke in the engine bay while I was in the car from the intake manifold. It has the same resistor pack for the injectors but does anyone what happens if the resistor pack goes bad or if the plugs for the injectors short out can keep the injectors on 100%, The cloud smelled stong like fuel so I dont think it was the wiring, also I even tried the smaller USDM obd1 injectors. And this is what I get when I try to start after everything has been cleaned and dried. H22A JDM motor obd1
Posted: Fri Jan 05, 2007 12:37 pm
by cardinal811
I callled HASport since I'm using their engine harness for a H22A into a 93 civic and they said to try and disconnect the A plug and see if I'm still getting fuel while the resisto r box is hooked up, if so then a shorted wire is acting as a ground and is keeping the injectors on 100% dutycycle. Causing by fuel issue. I keep everything posted for who evr is watching this thread.
Posted: Mon Jan 08, 2007 12:03 pm
by cardinal811
Well I know the injectors are pulsings right and not staying on 100% duty cycle. I took them off the intake and sat on the head facing into the air and they all pulsed at the same time for one cycle then they sequenced, looked real cool, but none the less my car still doesnt run. Got another dizzy in today so I'll hook that up after I get off work tonight. So here is my problem AIR+FUEL+Spark+correct timing=no running motor
Posted: Wed Jan 17, 2007 8:47 pm
by airshifter
Car on the dyno doing the exact same thing right now, S300 is working fine in another vehicle except save icon not working(1.2.2)
EG coupe with h22 swap
Put the stock ignition system back on, still same problem
KOEOFF sensors reading fine in sensor window
KOEON sensors display goes crazy and no cell tracing
Here is the weird part
Start engine with smanager off, then open program and connect to ecu without opening any file. Sensor log is working perfectly and now the save icon is also available. Open the corresponding file while still connected to ECU and it still works fine and the save icon still appears to function.
There must be a problem with this vehicle somewhere from previos find. Could it be a momentary ignition loss to the ecu after startup causing the datalog portion to mess up. I have resurfaced all of the ground points also
Posted: Thu Jan 18, 2007 10:43 am
by Spunkster
Make sure J12 is cut. Also make sure you are uploading a calibration using this version of Smanager. YOu cannot save a new calibration until you Save As.