rjparker's Recent Activity
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rjparker replied to the thread Can brake-actuator issues be related to changes in weather?.
Once the car goes to Ready your 12v battery does nothing but receive a charge if it needs it. The inverter/converter takes high voltage...
Feb 20, 2026 at 11:57 PM -
rjparker replied to the thread Head Gasket Replacement Shop Recommendations- San Francisco Bay Area.
Run it like a banshee when you get it back. You want to ensure its good during the warranty year.
Feb 20, 2026 at 9:59 PM -
rjparker attached a file to the thread 2015 w unclogged egr pipe at 115K miles.
Clean is always good in an engine. The Prius 1.8s prior to the 2017-2021 gen3 production had many engineering flaws that were all...
Feb 20, 2026 at 2:38 PM
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rjparker replied to the thread Skyactive X.
Second paragraph post 31.
Feb 20, 2026 at 2:10 PM -
rjparker attached a file to the thread Skyactive X.
[ATTACH] Toyota went dual injection along with electric motor intake valve timing and hydraulic exhaust timing for various reasons....
Feb 20, 2026 at 1:56 PM
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rjparker attached a file to the thread Head Gasket Replacement Shop Recommendations- San Francisco Bay Area.
Good luck. You are doing the right thing getting it diagnosed. If it had not lost coolant I might think it had a sticking open egr...
Feb 20, 2026 at 7:44 AM
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rjparker replied to the thread household A/C from J1772?.
A 1500 w inverter run off of a 12v battery takes over 110 amps. A huge number which also requires very large diameter cables on the 12v...
Feb 19, 2026 at 11:31 PM -
rjparker replied to the thread P0303 Code.
It was the #3 coil
Feb 19, 2026 at 7:02 PM -
rjparker replied to the thread Head gasket?.
Good sign. How is your oil consumption on this engine?
Feb 18, 2026 at 8:45 PM -
rjparker attached a file to the thread relay integration unit.
On a gen3 it is either the white module or the smaller black module in the engine fuse box. Each has two tabs on each end to allow it...
Feb 18, 2026 at 1:33 PM
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rjparker replied to the thread Oil marks on dipstick.
Because you can do the whole change from above as discussed in posts 39 and 41. No mess; no danger.
Feb 18, 2026 at 12:54 PM -
rjparker replied to the thread 2015 w unclogged egr pipe at 115K miles.
We had one diyer here that tore his engine down three times and never got it right. He finally changed the engine which, from a skills...
Feb 18, 2026 at 11:43 AM -
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
