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| Bad / Hunting idle 88 Duke when warm / hot (Page 7/8) |
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Donster
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MAY 13, 12:59 AM
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| quote | Originally posted by Patrick:
Coolant temperature of 80°C/176°F seems low to me for a fully warmed up engine. (Why does it also indicate 75°C?) Do you not have a 195°F thermostat installed?
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One value is at engine start-up, other value is "real-time".
While I don't know what all menu items mean, some are self explanatory (like MAP or IAC), the others are as follows:
TPS Throttle Position Sensor
MAP Manifold Absolute Pressure
IAc Idle Air Control
BPW Base Pulse Width
CLT Coolant Temp
MAT Manifold Air Temperature
O2X O2 Crosscounts
O2 O2 Sensor
iNT Integrator
BLM Block Learn Memory
ADV Spark Advance
TCC Torque Converter Clutch
PN Park Neutral Switch
CLC Something emissions related, I have to look that up
DFCO deceleration fuel cutoff
Thnx.
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Donster
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MAY 14, 12:39 AM
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This from a member of the GA Fiero Club regarding the thermostat:
"It has become a common practice to drill a 1/8 hole in the flange if it doesn't already have a little weep valve pin in it."
Is this necessary on the 88 Duke?
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theogre
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MAY 14, 02:08 AM
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| quote | Originally posted by Donster:
This from a member of the GA Fiero Club regarding the thermostat:
"It has become a common practice to drill a 1/8 hole in the flange if it doesn't already have a little weep valve pin in it."
Is this necessary on the 88 Duke? |
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No.
Get "superstat" in my cave.
Stant and other "Normal" stats work but this is better and helps prevents fake problems that makes people think the engine has problem. Is basically have a smoother operating curve to stop dash gauge hot/cold seesaw in winter. Engine is happier too.
Get Stant Caps too at same time. Stant fits better then most others. I would buy two each so have a new spare of rad and Tstat caps.
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Donster
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MAY 14, 02:22 AM
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Are the radiator cap and thermostat cap identical?
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Patrick
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MAY 14, 03:44 AM
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| quote | Originally posted by Donster:
Are the radiator cap and thermostat cap identical?
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Have you not looked at them?  They're completely different.
| quote | Originally posted by Donster:
CLT Coolant Temp
MAT Manifold Air Temperature
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One tip when using a scanner. After the car has sat all night, connect the scanner and without starting the engine, turn the key to the ON position and read the temperature for both the CLT and the MAT. They should both be very close to the same reading, basically the outside ambient air temperature. If not, one or both of the sensors is malfunctioning.[This message has been edited by Patrick (edited 05-14-2019).]
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Donster
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MAY 14, 06:26 AM
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| quote | Originally posted by Patrick:
Have you not looked at them? They're completely different.
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Car is about 90 Km away from me. I don't have a photographic memory, so it may have escaped me that they are different. 
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Donster
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MAY 14, 06:27 AM
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| quote | Originally posted by Patrick:
One tip when using a scanner. After the car has sat all night, connect the scanner and without starting the engine, turn the key to the ON position and read the temperature for both the CLT and the MAT. They should both be very close to the same reading, basically the outside ambient air temperature. If not, one or both of the sensors is malfunctioning.
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Thanks, will test / scan tonight.
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Patrick
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MAY 14, 02:46 PM
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| quote | Originally posted by Donster:
I don't have a photographic memory, so it may have escaped me that they are different.
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If you've ever seen the underside of these two caps, you'll never forget they're very different. 
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theogre
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MAY 14, 07:19 PM
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See my Cave, Radiator Caps and Thermostat
Stant PN: 10230 for rad cap, 10232 for Tstat cap, 45819 for 195° SuperStat
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Donster
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MAY 15, 12:58 AM
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Ah, that is where my confusion came from; RockAuto lists ALL caps as radiator caps, even the thermostat caps.
Thnx!
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