Possible ignition problem...help
Possible ignition problem...help
Ok guys here is my story:
I have an 05 Evo. I have a TBE and drop-in K&N. Before getting it tuned, I did some runs with an LM-1 wideband O2 sensor. I noticed that there were spikes in the log of the LM-1. Not long continuous spikes, but occasional spikes of one data point. Sometimes the spike reachs 22. It happens at WOT in any gear.
The car runs great and there is no loss in power
The same thing still happens after I got the car tuned. The dynojet wideband did not pick up any spikes and the car ran great on the dyno and made good power for the mods (see my sig).
I posted on the innovate forums about this and the engineer running the forums (Klaus) tells me that there is a misfire that only the LM1 can pick up because it is so sensitive. He tells me that the ignition system on my car is engineered with savings in mind and the car has high boost for a stock car. This high boost is blowing the spark. I did a search and some had mentioned that the stock coils are hit and miss.
The odd thing is that I get similar spikes when I run the innovate on my Spec V.
So what are my options here?
1. Swap plugs and use BPR7ES. I have those and I gapped them to 0.025. Would that solve the problem?
2. Get new stock coil packs and plug wires. The car has only 8000 miles and I wonder if this will help.
3. Get the HKS DLI. Would this improve the spark power and eliminate the misfire due to the boost blowing the spark?
What do you guys think? Any other options?
I have an 05 Evo. I have a TBE and drop-in K&N. Before getting it tuned, I did some runs with an LM-1 wideband O2 sensor. I noticed that there were spikes in the log of the LM-1. Not long continuous spikes, but occasional spikes of one data point. Sometimes the spike reachs 22. It happens at WOT in any gear.
The car runs great and there is no loss in power
The same thing still happens after I got the car tuned. The dynojet wideband did not pick up any spikes and the car ran great on the dyno and made good power for the mods (see my sig).
I posted on the innovate forums about this and the engineer running the forums (Klaus) tells me that there is a misfire that only the LM1 can pick up because it is so sensitive. He tells me that the ignition system on my car is engineered with savings in mind and the car has high boost for a stock car. This high boost is blowing the spark. I did a search and some had mentioned that the stock coils are hit and miss.
The odd thing is that I get similar spikes when I run the innovate on my Spec V.
So what are my options here?
1. Swap plugs and use BPR7ES. I have those and I gapped them to 0.025. Would that solve the problem?
2. Get new stock coil packs and plug wires. The car has only 8000 miles and I wonder if this will help.
3. Get the HKS DLI. Would this improve the spark power and eliminate the misfire due to the boost blowing the spark?
What do you guys think? Any other options?
I would get the DLI2 and see if it helps. If you are still seeing a misfire then I would gap the plugs closer like 0.022. If its still doing it, then I would think the lm-1 is just messing up.
--Josh
--Josh