OFT VVT Intake/Exhaust readings - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

RedFRS4me · 08-12-2017, 05:02 PM

Hey guys,

I recently had new cam sprocket and ecu replacements due to a p0018 cel a few months back. So far no engine check lights and its been running normal. I decide to go and check how its holding up and noticed that my VVT intake readings are all over the place anywhere from 0 degrees to over 100 degrees. What can be causing these fluctuating readings? Is it going to harm the engine with these bad readings? My VVT exhaust angles look good. They were fixed after the repairs. Somehow now my intake is screwy.

Please help!

Thanks!

steve99 · 08-12-2017, 06:35 PM

Quote:

Originally Posted by RedFRS4me

Hey guys,

I recently had new cam sprocket and ecu replacements due to a p0018 cel a few months back. So far no engine check lights and its been running normal. I decide to go and check how its holding up and noticed that my VVT intake readings are all over the place anywhere from 0 degrees to over 100 degrees. What can be causing these fluctuating readings? Is it going to harm the engine with these bad readings? My VVT exhaust angles look good. They were fixed after the repairs. Somehow now my intake is screwy.

Please help!

Thanks!

It possible its an oft channel logging issue, if the vvt cam sensor reading were that far off and erratic you would expect drivability isues and cel codes, maybe try logging same parameters on another car with same ecu calid as logging is specific ram addresses for each ecu calid

makinen · 08-13-2017, 07:54 AM

My A01E Calid ecu has a same issue with OFT.
I reported it to Shiv on March, but not fixed on August yet.

sw20kosh · 08-15-2017, 12:51 AM

Quote:

Originally Posted by RedFRS4me

Hey guys,

I recently had new cam sprocket and ecu replacements due to a p0018 cel a few months back. So far no engine check lights and its been running normal. I decide to go and check how its holding up and noticed that my VVT intake readings are all over the place anywhere from 0 degrees to over 100 degrees. What can be causing these fluctuating readings? Is it going to harm the engine with these bad readings? My VVT exhaust angles look good. They were fixed after the repairs. Somehow now my intake is screwy.

Please help!

Thanks!

Were the VVT intake readings ok before the dealer did the repairs?

Gringosteve · 08-15-2017, 02:14 AM

That sounds very strange, have you tried double checking with another OBD based bit of kit

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RedFRS4me · 08-17-2017, 04:36 AM

Quote:

Originally Posted by sw20kosh

Were the VVT intake readings ok before the dealer did the repairs?

Yes. After the cam sprockets didn't fix the issue they replaced the ECU. An updated 2015 ECU I think.

RedFRS4me · 08-17-2017, 04:38 AM

Quote:

Originally Posted by Gringosteve

That sounds very strange, have you tried double checking with another OBD based bit of kit

Sent from my iPhone using Tapatalk

I don't have access to one at the moment. I'm leaning towards what steve99 and makinen. There's no cel or hesitation when driving. With my old ECU I never saw it behave in that way.

Submarinesonce · 08-18-2017, 11:22 AM

Mine does the same thing intake VVT is always erratic.

08-13-2017, 07:54 AM	#3
makinen Senior Member Join Date: Jan 2013 Drives: Toyota 86 Location: South Korea Posts: 267 Thanks: 127 Thanked 201 Times in 115 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	My A01E Calid ecu has a same issue with OFT. I reported it to Shiv on March, but not fixed on August yet. __________________ /* Custom underbody panels and diffuser Custom electric water pump and PWM controller HKS GT EL header, 17MY intake manifold / Last edited by makinen; 08-18-2017 at 08:38 AM.*

08-18-2017, 11:22 AM	#8
Submarinesonce Senior Member Join Date: Mar 2017 Drives: Frs Location: Florida Posts: 130 Thanks: 21 Thanked 81 Times in 43 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Mine does the same thing intake VVT is always erratic. __________________ JDL UEL Turbo GT2860RS, AP Racing BBK, Verus Splitter/diffuser/canards, Sard rep carbon wing, TFF bash bar, HKS hi power, Tein Flex A, Hotchkiss FSB, Radium MCB, Konig Hypergram 17x8, FS Indy 500, 6k HID, Whiteline trans bushing insert, Verus AOS, grimmspeed strut brace, Racerx oil cooler w/ setrab 619, ES steering rack bushings, Whiteline subframe bushings, Toms tails, STi mirror caps, IRP shifter, TRD Steering wheel

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08-15-2017, 02:14 AM	#5
Gringosteve Senior Member Join Date: Nov 2015 Drives: UK Spec GT86 Location: UK Posts: 144 Thanks: 52 Thanked 44 Times in 33 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	That sounds very strange, have you tried double checking with another OBD based bit of kit Sent from my iPhone using Tapatalk

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