B20z p1399
08-09-2018, 08:29 PM
#1
B20z p1399
hey all hopefully someone can help me figure this out.
One of my eks got a b20z swap from the depot and while running the CRV Ecu, at about 3500 RPMS the car believes it’s misfiring (it doesn’t feel like it at all) and then throws a P1399 pending, and then a CEL that’s the only code. I also notice while running this computer the throttle feels like it has hard acceleration and deceleration as if the TPS is no good, although I wouldn’t believe the TPS would cause a misfire, not sure.
To note what I’ve done with the car since the issue first came up I’ll state:
spark plugs
wires
rotor and cap
valve adjustment
sedondary o2
little input or idea would be great, thanks.
Sent via iPhone.
One of my eks got a b20z swap from the depot and while running the CRV Ecu, at about 3500 RPMS the car believes it’s misfiring (it doesn’t feel like it at all) and then throws a P1399 pending, and then a CEL that’s the only code. I also notice while running this computer the throttle feels like it has hard acceleration and deceleration as if the TPS is no good, although I wouldn’t believe the TPS would cause a misfire, not sure.
To note what I’ve done with the car since the issue first came up I’ll state:
spark plugs
wires
rotor and cap
valve adjustment
sedondary o2
little input or idea would be great, thanks.
Sent via iPhone.
08-10-2018, 04:43 AM
#3
08-10-2018, 08:44 AM
#4
Fish Twig
Join Date: Nov 2005
Location: Still hunting that foo up there
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Re: B20z p1399
I've had issues where the tps was off and it was dumping fuel into the cylinders. Gas was shooting out of the exhaust. i recently had to readjust the tps because it was throwing a code, I followed what the fsm suggested but after everything looked good I tried to adjust it and boom, cel gone. It was the cel code for low voltage input or something like that.
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