So I recently had a Hyundai D4BF put into my L300 and it's running great. The previous owner had installed an EGT sensor but the mechanic that put the new engine in didn't tap it into the new engine and told me that with normal operation I shouldn't have to worry about EGT temps and that normal engine temps are all I really have to watch. I'm curious to hear what people think about this. Am I going to melt my engine on uphills if I'm not constantly backing off the throttle to keep EGTs down?
EGT sensor on D4BF
- Thread starter Coalemus
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L.G.
Active Member
Depends on the tune. My D4BF is stock tuned atm, abt 7psi of boost. You can floor it all day up mountain passes and egts will not go over about 1200 and temp will stay under 190 deg F or so. I'd drive it "blind" if I had to.
That said, I like my 3 in 1 gauge and certainly wouldn't delete it, especially during break in. I monitor and aim to keep egts around 900 while under way. I also wait for egts to drop to 300 before shutdown just to baby the turbo.
That said, I like my 3 in 1 gauge and certainly wouldn't delete it, especially during break in. I monitor and aim to keep egts around 900 while under way. I also wait for egts to drop to 300 before shutdown just to baby the turbo.
Sputnik
Well-Known Member
I doubt you'll melt your new engine, but being able to keep tabs on what it's doing under different environmental stresses (especially like a really hot summer day, when you're driving long distances up steep mountains) would be sort of preventative maintenance/long term system monitoring, and might give you early warning if something did start going wrong.
As above, a stock tune doesn't need an EGT, and I wouldn't drill a shiny new stock exhaust manifold just to fit one.
However if you've removed the Exhaust Gas Recirculation then the EGR blanking plate is the perfect place to install an EGT probe.
However if you've removed the Exhaust Gas Recirculation then the EGR blanking plate is the perfect place to install an EGT probe.
Kyre
Active Member
IMO all our little Diesel engines should have an EGT gauge (stock or not). It’s most likely the fault of all the blown head gaskets / cracked heads out there. Way way too easy to have zero idea how hot your engine is getting without one.
I live in an area with lots of up hill action and know for a fact I’d be pushing 1400+ unknowingly without my gauge and probably wouldn’t have had almost 5 years with almost no issues if I didn’t have one. Save yourself some piece of mind and install one.
I live in an area with lots of up hill action and know for a fact I’d be pushing 1400+ unknowingly without my gauge and probably wouldn’t have had almost 5 years with almost no issues if I didn’t have one. Save yourself some piece of mind and install one.
bikerjosh
Well-Known Member
Yeah, even before I started futzing (tuning term, I’m sure) with the IP I was amazed at how quickly EGTs build up under load in normal hilly area where I live. Never had an issue off road due to being much lower in revs, but get on the hwy and on an uphill - time to chill.
speedyquest
Well-Known Member
An EGT gauge just gives you information, it doesn't stop the engine from overheating or damaging itself. Even just the information itself doesn't help, you need to understand what is safe, what's happening, what not to do, etc. So instead of installing the gauge you could also just learn the signs for when to back off what's hard on the engine, etc. I'd argue you should learn that regardless haha.
To be clear, I'm not saying having an EGT gauge isn't helpful or a good idea, just that it's not cut and dry. Having the gauge still requires understanding and mechanical sympathy.
To be clear, I'm not saying having an EGT gauge isn't helpful or a good idea, just that it's not cut and dry. Having the gauge still requires understanding and mechanical sympathy.
What's a good resource to learn these signs of when to back off, etc.?