Si Overheated

Vtec_Nah

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Hopefully someone has an idea on what caused my Si to overheat.
I'll make the story short and as much detailed as I can.

It all started with me teaching my girl how to drive stick. Outside Temp was 55° or so. She was doing good getting off first and driving inside a small parking lot going from one end, stopping and getting off first again and going to the other end, repeating the process, rounds would be about 30 seconds from one end to the other. I didn't want to teach her how to shift to second just yet. 15 min in, she had a hard stall, all the lights came on for a quick second but disappeared and I tried not to panic. One light that came on and stayed was the engine oil. It said "check engine oil" however I figured it wasn't that bad since I had her turn the car on again and the light wasn't there, 10 min back into the lesson of her still driving in 1st below 3k or so rpms we finished and switched. Once I got back into the drivers I somehow glance at the temperature gauge and it's all the way to H.
I panic and pop the hood and let some air go in, blast the Heater on high and rev the car a little and the gauge slowly started dropping. Let it sit like that for 10-15 min and drove back home carefully. I was wondering if this was due to driving in first gear during 15-20 min in 3k or so rpms? Or could there be another reason? Just to mention i just installed the sirimoto flex fuel kit along with Hondata's ethanol basemap, however haven't pumped e85 since I still have a full tank of 91 Oct. Any feed back is appreciated from @Hondata also, thanks
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Best is to test drive the car normaly on you city or highway ; did it overheat ? Report.

No overheat; it was the driving at 1st gear to long time.
 

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You always want to get out of 1st gear. I'd also have a peak at the coolant temperature sensor as a precaution.
 

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Hopefully someone has an idea on what caused my Si to overheat.
I'll make the story short and as much detailed as I can.

It all started with me teaching my girl how to drive stick. Outside Temp was 55° or so. She was doing good getting off first and driving inside a small parking lot going from one end, stopping and getting off first again and going to the other end, repeating the process, rounds would be about 30 seconds from one end to the other. I didn't want to teach her how to shift to second just yet. 15 min in, she had a hard stall, all the lights came on for a quick second but disappeared and I tried not to panic. One light that came on and stayed was the engine oil. It said "check engine oil" however I figured it wasn't that bad since I had her turn the car on again and the light wasn't there, 10 min back into the lesson of her still driving in 1st below 3k or so rpms we finished and switched. Once I got back into the drivers I somehow glance at the temperature gauge and it's all the way to H.
I panic and pop the hood and let some air go in, blast the Heater on high and rev the car a little and the gauge slowly started dropping. Let it sit like that for 10-15 min and drove back home carefully. I was wondering if this was due to driving in first gear during 15-20 min in 3k or so rpms? Or could there be another reason? Just to mention i just installed the sirimoto flex fuel kit along with Hondata's ethanol basemap, however haven't pumped e85 since I still have a full tank of 91 Oct. Any feed back is appreciated from @Hondata also, thanks
Check Oil level & Coolant levels.

If you are low on coolant, engine can overheat, leading to low oil pressure.

What you were doing in the Car Park, is no different to congested rush hour city driving.
There is something else wrong, like low coolant (Coolant leak) or fan issue, that probably caused the symptoms you experienced.

Checking Oil & Coolant levels, and if fan is running is easy .. you can do that yourself. If they are OK, then it is probably time to get a Auto Mechanic to take a look.
 

Hondaman_MI

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Hopefully someone has an idea on what caused my Si to overheat.
I'll make the story short and as much detailed as I can.

It all started with me teaching my girl how to drive stick. Outside Temp was 55° or so. She was doing good getting off first and driving inside a small parking lot going from one end, stopping and getting off first again and going to the other end, repeating the process, rounds would be about 30 seconds from one end to the other. I didn't want to teach her how to shift to second just yet. 15 min in, she had a hard stall, all the lights came on for a quick second but disappeared and I tried not to panic. One light that came on and stayed was the engine oil. It said "check engine oil" however I figured it wasn't that bad since I had her turn the car on again and the light wasn't there, 10 min back into the lesson of her still driving in 1st below 3k or so rpms we finished and switched. Once I got back into the drivers I somehow glance at the temperature gauge and it's all the way to H.
I panic and pop the hood and let some air go in, blast the Heater on high and rev the car a little and the gauge slowly started dropping. Let it sit like that for 10-15 min and drove back home carefully. I was wondering if this was due to driving in first gear during 15-20 min in 3k or so rpms? Or could there be another reason? Just to mention i just installed the sirimoto flex fuel kit along with Hondata's ethanol basemap, however haven't pumped e85 since I still have a full tank of 91 Oct. Any feed back is appreciated from @Hondata also, thanks
What did the coolant look like when you opened the hood? Was it boiling? Never had that happen on my Civic, but other cars it's always been the water pump or some associated hoses/parts.
 


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Vtec_Nah

Vtec_Nah

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You always want to get out of 1st gear. I'd also have a peak at the coolant temperature sensor as a precaution.
Where would I be able to find the sensor? Thanks for your feedback
 
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Vtec_Nah

Vtec_Nah

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Check Oil level & Coolant levels.

If you are low on coolant, engine can overheat, leading to low oil pressure.

What you were doing in the Car Park, is no different to congested rush hour city driving.
There is something else wrong, like low coolant (Coolant leak) or fan issue, that probably caused the symptoms you experienced.

Checking Oil & Coolant levels, and if fan is running is easy .. you can do that yourself. If they are OK, then it is probably time to get a Auto Mechanic to take a look.
That's the exact same thing I was thinking, I figured it was similar to stop and go traffic, especially sine I didn't let her rev higher than 3k rpms, once she reached 3k Rpms in first gear is have her stop and do it again.
 
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Vtec_Nah

Vtec_Nah

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What did the coolant look like when you opened the hood? Was it boiling? Never had that happen on my Civic, but other cars it's always been the water pump or some associated hoses/parts.
Looked okay, no boiling. Engine was indeed hot.
 
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Vtec_Nah

Vtec_Nah

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Update #2
Started the car this morning and instantly check light turned on. Plugged in the Flashpro and checked the codes and got these
P0128
P2183
Maybe sensor resistor is open? I'll take it in to the dealer but wondering if theyll fix under warranty with all my mods.
 

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That's the exact same thing I was thinking, I figured it was similar to stop and go traffic, especially sine I didn't let her rev higher than 3k rpms, once she reached 3k Rpms in first gear is have her stop and do it again.
Yeah, def not enough air passing thru them radiator fins bud :thumbsup:

Not speaking about your girl specifically, but if any person in general cant prevent from stalling after about 15-20 minutes tops!!! They just may not be cut out for this life HAHAH :rofl: J/K lol
 


SBPerformance

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Update #2
Started the car this morning and instantly check light turned on. Plugged in the Flashpro and checked the codes and got these
P0128
P2183
Maybe sensor resistor is open? I'll take it in to the dealer but wondering if theyll fix under warranty with all my mods.
I would flash it back to stock and remove any aftermarket parts if you can. Honda will look for any reason possible to avoid paying it under warranty. Literally, anything. The dealer I worked for previously declined warranty work on a "second gear grind" complaint. Stated their aftermarket floor mats caused them to not properly push the clutch down all the way causing wear on the synchros.

Best of luck.
 

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That's the exact same thing I was thinking, I figured it was similar to stop and go traffic, especially sine I didn't let her rev higher than 3k rpms, once she reached 3k Rpms in first gear is have her stop and do it again.
I had exactly the same symptoms when I lost coolant (on a Nissan).
Coolant Temp when sky high, and the oil temp also must have gone high, as the Oil Pressure gauge dropped to almost zero.

Did you check:-
Oil level
Coolant level
Electric Fan operating.
Was A/C on max Cool ??
 

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Hopefully someone has an idea on what caused my Si to overheat.
I'll make the story short and as much detailed as I can.
@TopSzn
It all started with me teaching my girl how to drive stick. Outside Temp was 55° or so. She was doing good getting off first and driving inside a small parking lot going from one end, stopping and getting off first again and going to the other end, repeating the process, rounds would be about 30 seconds from one end to the other. I didn't want to teach her how to shift to second just yet. 15 min in, she had a hard stall, all the lights came on for a quick second but disappeared and I tried not to panic. One light that came on and stayed was the engine oil. It said "check engine oil" however I figured it wasn't that bad since I had her turn the car on again and the light wasn't there, 10 min back into the lesson of her still driving in 1st below 3k or so rpms we finished and switched. Once I got back into the drivers I somehow glance at the temperature gauge and it's all the way to H.
I panic and pop the hood and let some air go in, blast the Heater on high and rev the car a little and the gauge slowly started dropping. Let it sit like that for 10-15 min and drove back home carefully. I was wondering if this was due to driving in first gear during 15-20 min in 3k or so rpms? Or could there be another reason? Just to mention i just installed the sirimoto flex fuel kit along with Hondata's ethanol basemap, however haven't pumped e85 since I still have a full tank of 91 Oct. Any feed back is appreciated from @Hondata also, thanks
Leaning toward the mention of just installing a flex fuel kit. During installation you may have mistakingly disconnected the ECT sensor and the pins were damaged.
That's one possibility.
From what you divulged, you have listed at least (3) signs of an ECT problem:

Signs that your coolant temperature switch needs to be replaced:

* Poor fuel economy
* Black smoke coming from the exhaust pipe
* Trouble starting your vehicle even after reaching normal operating temperature
* Your vehicle fails an emissions test
* Vehicle is constantly overheating
* The temperature sensor is not consistent and behaves erratically
* Check Engine Light comes on
* Engine stalls or has a rough idle

In essence, your supposed girl's stalling was not due (per se) to her inability to throttle/shift.

P.S.
Upgrade your clutch for the power you expect to obtain from the E85 (and the DP); otherwise, you'll have another post about burning it out.
 
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Vtec_Nah

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Update #3
Good news,
After talking to a couple different people, I realized I didn't change some settings in the ethanol tune. To be specific disabling the ECT sensor. Which caused the cars fan not to turn on when it got hot. This was the issue. If anyone is installing the sirimoto flex fuel kit, remember to disable two sensors before flashing to the car. I'll leave the thread up for anyone needing this as a reference in the future. Thanks for everyones input!
 

Hollywoo0220

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Update #3
Good news,
After talking to a couple different people, I realized I didn't change some settings in the ethanol tune. To be specific disabling the ECT sensor. Which caused the cars fan not to turn on when it got hot. This was the issue. If anyone is installing the sirimoto flex fuel kit, remember to disable two sensors before flashing to the car. I'll leave the thread up for anyone needing this as a reference in the future. Thanks for everyones input!
Brother, I sure hope you didn’t create any hot spots. Good thing you caught the problem
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