APYM EPROM HELP!!
#1
APYM EPROM HELP!!
I've got a 1989 iroc z 5.0L TPI vin code F (LB9) I'm trying to find EPROM GM part # 16133467 code on the chip is "APYM 3493". My PROM is bad. This part # is discontinued with no old stock available. From what the GM parts guy says, this is the only year that this chip was used. Is there another option? Anybody have a chip for sale? or any leads?
Thanks for any help in advance!
Thanks for any help in advance!
#3
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Car: 88 convertible
Engine: 5.7L
Transmission: 4+3 maual
Axle/Gears: 3.07
Re: APYM EPROM HELP!!
I've got a 1989 iroc z 5.0L TPI vin code F (LB9) I'm trying to find EPROM GM part # 16133467 code on the chip is "APYM 3493". My PROM is bad. This part # is discontinued with no old stock available. From what the GM parts guy says, this is the only year that this chip was used. Is there another option? Anybody have a chip for sale? or any leads?
Thanks for any help in advance!
Thanks for any help in advance!
What transmission and gear ratio? There are other proms you could use but may have to change a few parameters in the bin or use a custom bin.
#4
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Tpiparts has them according to their site
Diy here
http://www.gearhead-efi.com/Fuel-Inj...Information-6E
Diy here
http://www.gearhead-efi.com/Fuel-Inj...Information-6E
#5
Re: APYM EPROM HELP!!
I've never burnt chips before and I'm trying to keep as stock as possible.
Automatic and I believe 2.73 gears. I've also read I can't use one from a 350 because they have different injectors... So it may run rich?
Last edited by 89-IROCZ-5.0TPI; 09-26-2015 at 11:29 PM.
#6
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Re: APYM EPROM HELP!!
then you have to pony up 175 bucks and get one from tpiparts if you are sure it's the prom. As for stock, no one sees you have a memcal adapter and additional prom in there. If it has a stock tune burnt onto it, it's as stock as from the factory in the way it runs.
Last edited by Twin_Turbo; 09-29-2015 at 12:52 AM.
#7
Re: APYM EPROM HELP!!
Ecm had codes:
22 tps signal low voltage
21 tps signal high voltage
14 coolant temp sensor high temp indicated
32 egr circuit
53 vat diag
51 prom error
44 o2 sensor lean
Code 51 mem-cal error (faulty or incorrect mem-cal) check that all pins are fully inserted in the socket and that mem-cal is properly latched. If ok replace mem-cal, clear memory, & recheck. If code 51 reappears, replace ecm.
22 tps signal low voltage
21 tps signal high voltage
14 coolant temp sensor high temp indicated
32 egr circuit
53 vat diag
51 prom error
44 o2 sensor lean
Code 51 mem-cal error (faulty or incorrect mem-cal) check that all pins are fully inserted in the socket and that mem-cal is properly latched. If ok replace mem-cal, clear memory, & recheck. If code 51 reappears, replace ecm.
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#8
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Car: 88 convertible
Engine: 5.7L
Transmission: 4+3 maual
Axle/Gears: 3.07
Re: APYM EPROM HELP!!
According to Chevythunder, these proms are all for 89 - 305 - auto - 2.73 rear gears, federal emissions:
APYM 3493
APYR 3506
ANYH 9298
ANYC 9334
These are California emissions:
APYT 3513
APYY 3529
ANYD 9346
ANYZ 9384
HTH!
APYM 3493
APYR 3506
ANYH 9298
ANYC 9334
These are California emissions:
APYT 3513
APYY 3529
ANYD 9346
ANYZ 9384
HTH!
#10
Junior Member
Re: APYM EPROM HELP!!
I'm my experience EPROMS never go bad. But buying a remanned ECM is a lottery. Most ship bad out of the box, go find a junkyard car if you suspect a faulty ECM. You will spend WAY less money for your patience. (And get a pile of free calpaks)
Last edited by Nekomancer; 02-22-2022 at 09:11 PM.
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