dreaded 1514 code
Melting Slicks
Joined: Nov 2004
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From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
I imagine that Nick is probably running a 3 bar sd tune..loooking for greater than 15 psi and the big numbers.
2 or 3 wouldn't cure his current issue.
For those not familiar with the problem, it can happen even with an NA car ......he 1514 table is used by the pcm as a reference to how much much flow is expected. If the numbers are exceeded, the pcm thinks there is a problem and goes into reduced power mode.
Most can cure this by upping the values in the table, but in extreme cases, the table can be maxed out and still problems and reduced power mode come into play.
We just slapped a maggie on a Magicstick 4 346 witout problems. Then we went sd withput problems. Then we changed to a lrger air filter and 1514 codes apeared randomly.
Upping the max values of the 1514 table solved this, but Nick's problems seem to be beyond just a table tweak.
The 1514 problem is related to flow and tps position (if I recall correctly) The pcm looks at throttle blade angle or opening and if it thinsthat too much flow is happening for the current throotle blade position, it assumes that there is a problem and shuts the whole show down.
Maybe some of the MORE technical people could elaborate and/or correct me.
2 or 3 wouldn't cure his current issue.
For those not familiar with the problem, it can happen even with an NA car ......he 1514 table is used by the pcm as a reference to how much much flow is expected. If the numbers are exceeded, the pcm thinks there is a problem and goes into reduced power mode.
Most can cure this by upping the values in the table, but in extreme cases, the table can be maxed out and still problems and reduced power mode come into play.
We just slapped a maggie on a Magicstick 4 346 witout problems. Then we went sd withput problems. Then we changed to a lrger air filter and 1514 codes apeared randomly.
Upping the max values of the 1514 table solved this, but Nick's problems seem to be beyond just a table tweak.
The 1514 problem is related to flow and tps position (if I recall correctly) The pcm looks at throttle blade angle or opening and if it thinsthat too much flow is happening for the current throotle blade position, it assumes that there is a problem and shuts the whole show down.
Maybe some of the MORE technical people could elaborate and/or correct me.
Burning Brakes
Joined: Feb 2004
Posts: 1,108
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From: over the water Cali
I read some of the discussions. But I don't really understand how this code appears in a SD tune situation. How does it know how much air is really getting into the intake at high rpms in open loop. The o2 are not accurate . It can only rely on fueling.
But then that means there is a maximum fuel allowed in the computer program period. That maybe how some are getting around this by decreasing inj size and ve tables. Also a reason to go to a full ecu replacement(bigstuff 3).
A duel injector system could work with the stock computer. Using two 42# inj per cylinder putting in the inj pulse for 42 # single. Then adjusting VEs and PE to correctly match the doubled flow rate. No 1514 error. Any thoughts?
But then that means there is a maximum fuel allowed in the computer program period. That maybe how some are getting around this by decreasing inj size and ve tables. Also a reason to go to a full ecu replacement(bigstuff 3).
A duel injector system could work with the stock computer. Using two 42# inj per cylinder putting in the inj pulse for 42 # single. Then adjusting VEs and PE to correctly match the doubled flow rate. No 1514 error. Any thoughts?
Melting Slicks
Joined: Nov 2004
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From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
I imagine that the pcm knows what size the injectors are and the pulsewidth along with afr.....so, it may assume that the airflow required is too much with respect to tb size/flow and tps blade angle, etc.
So Nick is going to snerf the tune by telling the pcm that the injectors are really small, an that airflow isn't all that much......but then the VE table numbers would be too high, and the pcm would hold the injectors open for too long.....therfore the ve numbers need to be reduced.
I am sure there may be other ways to do this, best being a standalone, but that gets complicated because of all the other functions that need to be performed by the pcm...
This IS one of the cheapest ways to fix the problem.
jmo (and I know very little)
So Nick is going to snerf the tune by telling the pcm that the injectors are really small, an that airflow isn't all that much......but then the VE table numbers would be too high, and the pcm would hold the injectors open for too long.....therfore the ve numbers need to be reduced.
I am sure there may be other ways to do this, best being a standalone, but that gets complicated because of all the other functions that need to be performed by the pcm...
This IS one of the cheapest ways to fix the problem.
jmo (and I know very little)
Last edited by RJW; Oct 1, 2007 at 03:10 PM.
Drifting
Joined: Mar 2005
Posts: 1,737
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From: Northern VA
I would think this HAS to be a bug in the custom OS. There is no way you are flowing anywhere near 4.1.
I'm sure that you have set your cylinder volume correctly for the new engine...
Got to be a bug.
I'm sure that you have set your cylinder volume correctly for the new engine...
Got to be a bug.
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
guys the quote/reply is messed up?!?!?!
I would think this HAS to be a bug in the custom OS. There is no way you are flowing anywhere near 4.1.
I'm sure that you have set your cylinder volume correctly for the new engine...
Got to be a bug.
anyway yes i have the properly sized engine/cylinder volume.
dont believe it to be a bug....according to bill@hptuners.
i understand what u are trying to say but you cannot be sure on HOW the pcm is doing its caculations.
I would think this HAS to be a bug in the custom OS. There is no way you are flowing anywhere near 4.1.
I'm sure that you have set your cylinder volume correctly for the new engine...
Got to be a bug.
anyway yes i have the properly sized engine/cylinder volume.
dont believe it to be a bug....according to bill@hptuners.
i understand what u are trying to say but you cannot be sure on HOW the pcm is doing its caculations.
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
oh god...what kinda worms will i open then!
jay ill fix this easy....as stated ill fake the computer into thinking that it has 60lbers were in reality itll be 96'ers, that inturn will cause the ve table to be way to fat. from there ill cut the VE down and then all checks will be ok....
jay ill fix this easy....as stated ill fake the computer into thinking that it has 60lbers were in reality itll be 96'ers, that inturn will cause the ve table to be way to fat. from there ill cut the VE down and then all checks will be ok....
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Team Owner
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St. Jude Donor '03 through '17
oh god...what kinda worms will i open then!
jay ill fix this easy....as stated ill fake the computer into thinking that it has 60lbers were in reality itll be 96'ers, that inturn will cause the ve table to be way to fat. from there ill cut the VE down and then all checks will be ok....
jay ill fix this easy....as stated ill fake the computer into thinking that it has 60lbers were in reality itll be 96'ers, that inturn will cause the ve table to be way to fat. from there ill cut the VE down and then all checks will be ok....
Oh come on you'll get all new software to play with, you'll love it. I'll call Lisa for the CC# and have it sent UPS!
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
ive smashed enough bugs! i must have gone thru a case of RAID!
unfished block, bricked pcm, U1000 codes
,licesnce issues w/hp,
bad serial cable(drove me nutz) bad hp interface, no cam sensor reading................................. ...............................bad fuel pressure regulator, bad ebc seloniod
now 1514.......hey man u wanna play with the the upper end thats what ull get. i'm almost there, gotta say its a sweet azz package after its all said and done.
boltin' on a turbo kit aint chit! there is soooo much more to it.
oh i almost forgot.........another one....car would shut off when going into boost...hp tuners has a bug when using BE....(thanks phil)
unfished block, bricked pcm, U1000 codes
,licesnce issues w/hp,bad serial cable(drove me nutz) bad hp interface, no cam sensor reading................................. ...............................bad fuel pressure regulator, bad ebc seloniod
now 1514.......hey man u wanna play with the the upper end thats what ull get. i'm almost there, gotta say its a sweet azz package after its all said and done. boltin' on a turbo kit aint chit! there is soooo much more to it.
oh i almost forgot.........another one....car would shut off when going into boost...hp tuners has a bug when using BE....(thanks phil)
Last edited by NICK YOSKIN; Oct 1, 2007 at 11:14 PM.
Le Mans Master
Joined: Sep 2001
Posts: 8,840
Likes: 43
From: State of Confusion.
ive smashed enough bugs! i must have gone thru a case of RAID!
unfished block, bricked pcm, U1000 codes ,licesnce issues w/hp,
bad serial cable(drove me nutz) bad hp interface, no cam sensor reading................................. ...............................bad fuel pressure regulator, bad ebc seloniod now 1514.......hey man u wanna play with the the upper end thats what ull get. i'm almost there, gotta say its a sweet azz package after its all said and done.
boltin' on a turbo kit aint chit! there is soooo much more to it.
oh i almost forgot.........another one....car would shut off when going into boost...hp tuners has a bug when using BE....(thanks phil)
unfished block, bricked pcm, U1000 codes
,licesnce issues w/hp,bad serial cable(drove me nutz) bad hp interface, no cam sensor reading................................. ...............................bad fuel pressure regulator, bad ebc seloniod
now 1514.......hey man u wanna play with the the upper end thats what ull get. i'm almost there, gotta say its a sweet azz package after its all said and done. boltin' on a turbo kit aint chit! there is soooo much more to it.
oh i almost forgot.........another one....car would shut off when going into boost...hp tuners has a bug when using BE....(thanks phil)
You'll get it fixed Nick! Just hang there! It'll be worth it when you're done!
Last edited by FreddyG; Oct 1, 2007 at 11:34 PM.
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
Melting Slicks
Joined: Nov 2004
Posts: 2,715
Likes: 0
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
I hear ya...
You wanna play you gotta pay...
You wanna play you gotta pay...
ive smashed enough bugs! i must have gone thru a case of RAID!
unfished block, bricked pcm, U1000 codes ,licesnce issues w/hp,
bad serial cable(drove me nutz) bad hp interface, no cam sensor reading................................. ...............................bad fuel pressure regulator, bad ebc seloniod now 1514.......hey man u wanna play with the the upper end thats what ull get. i'm almost there, gotta say its a sweet azz package after its all said and done.
boltin' on a turbo kit aint chit! there is soooo much more to it.
oh i almost forgot.........another one....car would shut off when going into boost...hp tuners has a bug when using BE....(thanks phil)
unfished block, bricked pcm, U1000 codes
,licesnce issues w/hp,bad serial cable(drove me nutz) bad hp interface, no cam sensor reading................................. ...............................bad fuel pressure regulator, bad ebc seloniod
now 1514.......hey man u wanna play with the the upper end thats what ull get. i'm almost there, gotta say its a sweet azz package after its all said and done. boltin' on a turbo kit aint chit! there is soooo much more to it.
oh i almost forgot.........another one....car would shut off when going into boost...hp tuners has a bug when using BE....(thanks phil)
Melting Slicks
Joined: Nov 2004
Posts: 2,715
Likes: 0
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
I hope I can say this nicely. Given your responses I don't think you are really in a good position to be giving tuning advice.
You suggested that in order to fix his problem he reflash with an Fbody program and just put a cabled TB on there? It is not as though he is doing anything that no one else has done before. This is not ground breaking, it is tuning 101.
Within the first four posts of yours I read, you were involved with a very shady guy and then said you blew up a motor on purpose in the name of "R&D" all while stating you were going to become a forum vendor and start selling turbo kits to people? Like I said.. Wow.
Good luck.
You suggested that in order to fix his problem he reflash with an Fbody program and just put a cabled TB on there? It is not as though he is doing anything that no one else has done before. This is not ground breaking, it is tuning 101.
Within the first four posts of yours I read, you were involved with a very shady guy and then said you blew up a motor on purpose in the name of "R&D" all while stating you were going to become a forum vendor and start selling turbo kits to people? Like I said.. Wow.
Good luck.
This is at least tuning 102....
Melting Slicks
Joined: Jul 2005
Posts: 2,586
Likes: 2
From: Bardstown Kentucky
I hope I can say this nicely. Given your responses I don't think you are really in a good position to be giving tuning advice.
You suggested that in order to fix his problem he reflash with an Fbody program and just put a cabled TB on there? It is not as though he is doing anything that no one else has done before. This is not ground breaking, it is tuning 101.
Within the first four posts of yours I read, you were involved with a very shady guy and then said you blew up a motor on purpose in the name of "R&D" all while stating you were going to become a forum vendor and start selling turbo kits to people? Like I said.. Wow.
Good luck.
You suggested that in order to fix his problem he reflash with an Fbody program and just put a cabled TB on there? It is not as though he is doing anything that no one else has done before. This is not ground breaking, it is tuning 101.
Within the first four posts of yours I read, you were involved with a very shady guy and then said you blew up a motor on purpose in the name of "R&D" all while stating you were going to become a forum vendor and start selling turbo kits to people? Like I said.. Wow.
Good luck.
And I agree with RJ, at least 102 probably even higher
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,863
Likes: 86
From: PA
St. Jude Donor '08
the work around the 1514 isnt ground breaking but i'd say its a 102 course nick
i was speaking with mike (skunkwerks) and he has a therory to why my car is going into 1514 even though the table is maxed out. ill let him explain it though.
i was speaking with mike (skunkwerks) and he has a therory to why my car is going into 1514 even though the table is maxed out. ill let him explain it though.
Melting Slicks
Joined: Nov 2004
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From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
just kidding....
So Nick....any update???? Are you having success with the tuning???