- Sat Mar 30, 2013 3:33 pm
#329721
This is starting to fry my brain, I need help. I'm horrible at explaining things, so bare with me...
I've got a JDM B18C GSR spec. Several months ago, it started stuttering while driving at what seems like random intervals. It was behaving like it was getting fuel, but the spark wasn't igniting properly. The Dizzy is only half a year old and was a new matched JDM part. So I replaced the spark plugs and wires and O2 sensor and reset the timing. It cleared up for a week or so, then started up again. Then last month, it started getting worse, and then left me stranded on the side of the road. I was able to get it started enough to limp it home while it stuttered and backfired a lot. I stuck it in my shop and started trying to figure it out. I discovered a cracked pipe in my exhaust manifold, so I ordered a header and installed it when it came in after 3 weeks (backorder issues). It ran better, and behaved perfectly going around the block a few times. So last night I took it into town to get some Sonic, and it started doing the same thing again and stalled on me. I was able to get it started after it cooled down a little an limp it home, as it was barely running.
Right now, I have a code 41, O2 sensor heater, which in a moment i'm going to change it out.
So far, I've changed the Dizzy, plugs, wires, O2, cleaned connections for TPS, MAP, and a few other sensors around the intake. Fresh oil change, too. It's getting plenty of fuel, the pump works and the filter is less than a year old. it seems to be spark related.
I'm going to test the TPS and see if it's calibrated, and i read something about a mesh filter on the sensor on the back of the intake manifold, which I'll pull off and see if it exists and needs to be cleaned.
And i've checked that the MAP and TPS connections aren't crossed.
If this doesn't work, I think the only option is to get a new ECU and try it?
This is my daily, any help would be highly appreciated and hug-worthy.
I've got a JDM B18C GSR spec. Several months ago, it started stuttering while driving at what seems like random intervals. It was behaving like it was getting fuel, but the spark wasn't igniting properly. The Dizzy is only half a year old and was a new matched JDM part. So I replaced the spark plugs and wires and O2 sensor and reset the timing. It cleared up for a week or so, then started up again. Then last month, it started getting worse, and then left me stranded on the side of the road. I was able to get it started enough to limp it home while it stuttered and backfired a lot. I stuck it in my shop and started trying to figure it out. I discovered a cracked pipe in my exhaust manifold, so I ordered a header and installed it when it came in after 3 weeks (backorder issues). It ran better, and behaved perfectly going around the block a few times. So last night I took it into town to get some Sonic, and it started doing the same thing again and stalled on me. I was able to get it started after it cooled down a little an limp it home, as it was barely running.
Right now, I have a code 41, O2 sensor heater, which in a moment i'm going to change it out.
So far, I've changed the Dizzy, plugs, wires, O2, cleaned connections for TPS, MAP, and a few other sensors around the intake. Fresh oil change, too. It's getting plenty of fuel, the pump works and the filter is less than a year old. it seems to be spark related.
I'm going to test the TPS and see if it's calibrated, and i read something about a mesh filter on the sensor on the back of the intake manifold, which I'll pull off and see if it exists and needs to be cleaned.
And i've checked that the MAP and TPS connections aren't crossed.
If this doesn't work, I think the only option is to get a new ECU and try it?
This is my daily, any help would be highly appreciated and hug-worthy.
Last edited by Leppy on Sun Apr 21, 2013 8:51 pm, edited 1 time in total.
