Attention: TDR Forum Junkies 
Finally got my water injection working again and had strange things happening when i used my grid heaters last night. Temps were getting cool out, causing my engine to idle rough for a couple minutes after startup and haze more than usual out the exhaust. Truck had been sitting 3 hours and was just idling, not driving when i turned on my grid heaters, which are controlled via a momentary switch on my dash.
Engine sounded way different and i noticed a strange, "hot" smell when i engaged the grids. The pyrometer on my X-Monitor hasn't been working in months but came on with the grid heaters showing around 2,235 degrees. I thought it was really freaky was when i saw lots of smoke passing in front of my headlights.
I left the engine running and inspected what i could see under the hood. Was not able to find the source of the smoke, but after a couple minutes, and revving the engine lightly by hand, the smoke cleared and did not come back. Didn't see any smoke under the hood whatsoever, only as if coming out of the headlights, which made no sense to me. Smoke was light gray.
The only cause of such a strange event that i can think of is the water injection. Unless i was burning up wires or but they all looked fine. Only held the button for about 10 seconds at a time. Perhaps there were left over water droplets in the intake air horn. What effects should there be using the grid heaters at the same time as the water is being injected, or if there is just some water left over? Water wasn't being injected until about 7 psi, shouldn't have been coming on at all in the stop and go driving before being parked.
I've been running straight water for now but will be using windshield washer fluid soon. I was thinking that the greatest risk is that the grid heaters could get the air in the intake hot enough to not only evaporate but if there is methanol, detonate too early. Has anyone else had this experience? I've read of using the heater grids before shut down to make sure all droplets are burned off.
Is there anything to worry about using water/methanol and grid heaters? Is it normal for the grids to make a pyro read that hot? Any ideas on what was causing all of that smoke or the smell? Engine seemed to idle slightly different but i'm not sure how to describe it. At first i thought i had a little less power, but after a few more miles to make sure things were OK, it was still running great. Heater seemed to blow hot air sooner, blew 140 degree air out the vents like usual. Thought i might have leaked a little coolant but i expected that if that were the case, i would have seen the smoke again at another stop light.
Thanks,
Matt
Engine sounded way different and i noticed a strange, "hot" smell when i engaged the grids. The pyrometer on my X-Monitor hasn't been working in months but came on with the grid heaters showing around 2,235 degrees. I thought it was really freaky was when i saw lots of smoke passing in front of my headlights.
I left the engine running and inspected what i could see under the hood. Was not able to find the source of the smoke, but after a couple minutes, and revving the engine lightly by hand, the smoke cleared and did not come back. Didn't see any smoke under the hood whatsoever, only as if coming out of the headlights, which made no sense to me. Smoke was light gray.
The only cause of such a strange event that i can think of is the water injection. Unless i was burning up wires or but they all looked fine. Only held the button for about 10 seconds at a time. Perhaps there were left over water droplets in the intake air horn. What effects should there be using the grid heaters at the same time as the water is being injected, or if there is just some water left over? Water wasn't being injected until about 7 psi, shouldn't have been coming on at all in the stop and go driving before being parked.
I've been running straight water for now but will be using windshield washer fluid soon. I was thinking that the greatest risk is that the grid heaters could get the air in the intake hot enough to not only evaporate but if there is methanol, detonate too early. Has anyone else had this experience? I've read of using the heater grids before shut down to make sure all droplets are burned off.
Is there anything to worry about using water/methanol and grid heaters? Is it normal for the grids to make a pyro read that hot? Any ideas on what was causing all of that smoke or the smell? Engine seemed to idle slightly different but i'm not sure how to describe it. At first i thought i had a little less power, but after a few more miles to make sure things were OK, it was still running great. Heater seemed to blow hot air sooner, blew 140 degree air out the vents like usual. Thought i might have leaked a little coolant but i expected that if that were the case, i would have seen the smoke again at another stop light.
Thanks,
Matt
