High Pressure Injectors and rail issue
10-09-23, 09:35 AM
#16
8th Gear
Thread Starter
Those codes indicate cyl 5 and 7 misfires. It could be fuel, spark or a number of other reasons. Did you use the random injectors that you had purchased? What color band? How was the car running before you exchanged the valley plate? Not sure what you meant as valley plate is usually just resealed and not replaced due to it leaking coolant. What sealant did you use? Mileage and year? Please answer each of these questions as the answer to each matters.
Yes, I used the aftermarket injectors, color green.
Car was running fine, it was just leaking coolant.
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swfla (10-09-23)
10-09-23, 10:27 AM
#17
10-09-23, 11:04 AM
#18
8th Gear
Thread Starter
Gerf:
Some tabs also broke off, put I put some high heat silicon so they dont come off.
Also, I double check all connectors to make sure I did not miss any.
I think maybe the broken connectors are the issue, The car ran and sounded smoth idle for like 10 minutes, I drove it for like 5 minutes and everything was fine, I was happy but suddenly started to shake and check engine started to blink.
I suspect that the connectors are probably loose or came out. I found the oem connectors in rockauto and replace them.
Thanks.
Some tabs also broke off, put I put some high heat silicon so they dont come off.
Also, I double check all connectors to make sure I did not miss any.
I think maybe the broken connectors are the issue, The car ran and sounded smoth idle for like 10 minutes, I drove it for like 5 minutes and everything was fine, I was happy but suddenly started to shake and check engine started to blink.
I suspect that the connectors are probably loose or came out. I found the oem connectors in rockauto and replace them.
Thanks.
10-09-23, 11:12 AM
#19
Lead Lap
iTrader: (1)
As long as you used the specific sealant for Toyota/Lexus and no substitute, the valley repair is probably OK. But if you used different sealant and/or didn't seal it properly (follow factory procedure), there could be an issue from that repair now. I think there could be a danger of coolant getting into combustion chamber. Not positive. Maybe someone else can verify if a bad seal on valley could let coolant into combustion.
10-09-23, 11:15 AM
#20
Technically you can't even 'just replace' HP injectors. They won't seal (they usually do though). There's a rather involved procedure to install new teflon seals to injectors before reinserting.
Also. Green? As in body of injector is green? Or band? Because green/brown are colors of LOW pressure injectors (upper rail).
My guess here - error during reassembly.
Also. Green? As in body of injector is green? Or band? Because green/brown are colors of LOW pressure injectors (upper rail).
My guess here - error during reassembly.
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swfla (10-09-23)
10-09-23, 11:21 AM
#21
Pinched harness, unseated connectors, even misplaced connectors (that can explain good running on port injection then it switches on D4 and starts misfiring - OR SOMETHING).
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swfla (10-09-23)
10-09-23, 04:32 PM
#22
It's gonna suck hard if you have to do it all over.
11-06-23, 03:30 PM
#25
8th Gear
Thread Starter
Hello All,
Thank you for your support and advice, quick update. I installed - new injector connectors, and car is running fine. The aftermarket BECK/ARNLEY1591095 injectors are working just fine.
Thank you for your support and advice, quick update. I installed - new injector connectors, and car is running fine. The aftermarket BECK/ARNLEY1591095 injectors are working just fine.
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