rjparker's Recent Activity
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rjparker replied to the thread P0303 Code.
Don't go cheap on plugs or coils; they may fail quickly and you would have been better off just replacing the one failed coil with oem.
Feb 17, 2026 at 5:53 PM -
rjparker attached a file to the thread Oil marks on dipstick.
The way to do it with off the shelf parts is to first convert your gen3 to a standard spin on filter using 2018 gen4 oil filter housing...
Feb 17, 2026 at 5:48 PM
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rjparker attached a file to the thread P0A80 code + engine misfires?.
On initial startup an early head gasket leak can cause a lot of misfires with resulting severe rattles and not set a code. The logic...
Feb 17, 2026 at 2:18 PM
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rjparker replied to the thread P0303 Code.
A value of zero on a cylinder misfire counter means no misfires, while a higher number represents misfires per 200 revolutions.
Feb 17, 2026 at 1:50 PM -
rjparker attached a file to the thread Which cylinder is which?.
Articulating Borescope with ability to move camera from display [ATTACH] Eric O has demonstrated his on several occasions
Feb 17, 2026 at 1:26 PM
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rjparker replied to the thread Legacy Prius batteries.
control laws?
Feb 17, 2026 at 12:55 AM -
rjparker replied to the thread P0303 Code.
Sounds like its not starting at all. A hybrid motor spins the engine so fast people often think the dngine is running. No
Feb 16, 2026 at 10:00 PM -
rjparker replied to the thread Regen Braking adjustment.
Under typical braking, regen is used to slow the car down to approximately 7-17 mph when the front hydraulic brakes are used. Rears are...
Feb 16, 2026 at 9:49 PM -
rjparker replied to the thread P0A80 code + engine misfires?.
Most likely separate issues.
Feb 16, 2026 at 8:41 PM -
rjparker attached a file to the thread The high-voltage battery fan has been successfully cleaned.
Get one of these and it will make loosening lug nuts much easier. [ATTACH] It allows both hands to be effectively used and can be...
Feb 16, 2026 at 6:39 PM
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rjparker attached a file to the thread Heat stopped working: 2012 Two, 145K Miles.
1. Read second coolant temperature sensor located downstream of the heater and exhaust heat recirculation system. This is a dual passage...
Feb 15, 2026 at 10:38 PM
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rjparker attached a file to the thread Oil marks on dipstick.
Believe or not, vacuuming up the oil through the dipstick can remove more oil than draining. It is also useful for every other fluid....
Feb 15, 2026 at 1:29 PM
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rjparker replied to the thread Misfiring After Egr And Intake cleaning..
It will not run right with the pcv hose off and you can't see it from above. Others have found disconnected cables after they were...
Feb 15, 2026 at 12:12 AM -
rjparker attached a file to the thread Intermittent P0128 code ... what to do?.
According to a search, a 2020 Toyota Corolla Hybrid has an Exhaust Heat exchange (EHex) system which helps some of the coolant to...
Feb 14, 2026 at 10:51 PM
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rjparker replied to the thread Oil marks on dipstick.
In true Priuschat fashion where tangents go unmoderated and errors can't be corrected by the author, Valvoline Restore arguments were...
Feb 14, 2026 at 4:27 PM
