i recently found out that my 96' 850r has a 95 t-5r ecu. And now it throws codes that my car doesn 't have. Any comments, or is it no big deal. It has a constant check engine light which sucks.
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Wrong Ecu
Started by Guest_Guest_nik850r_*, Apr 16 2004 03:31 AM
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#2
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Posted 16 April 2004 - 03:37 AM
Are you sure? The last three digits of the Bosch ECU on a 1996R and 1995 T5R are the same. 628
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#3 Guest_Guest_nik850r_*
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Posted 16 April 2004 - 04:19 AM
a year or so ago, i purchased a chip from ipd, and they said the numbers were for a 95 t5r, but i thought nothing of it. but a month ago i had my car in for service, and also for a check engine light. They confirmed it was the wrong ecu. I tried talking to the dealership where i bought the car, and they blew me off. it doesn't change the performance, but how do i explain the check engine light if i want to sell the car. and if the light pops on for a real reason.
#4
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Posted 16 April 2004 - 04:28 AM
Have you tried contacting IPD and asking them if they can help you fix the problem?
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1995 Volvo 850 T-5R Currently in Storage RWD Conversion, 8-Speed Automatic Conversion, Quadruple Turbo w/ Supercharger and NOx
#5
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Posted 16 April 2004 - 05:04 AM
What error codes do they pull when the check engine light is on? If the ECU was really the problem why wouldn't it have started throwing codes the instant you installed it instead of waiting nearly a year?
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#6
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Posted 16 April 2004 - 05:35 AM
IT CANT BE THE ECU ITS AN IDENTICAL ECU.
blew up m56h for now
#7
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Posted 16 April 2004 - 08:04 AM
It's physically the same, but maybe there are differences in programming and the sensors in the car? The '96 are fully OBD-II, while the '95 aren't, so I would think there might actually be differences pertaining to sensors / subsystems between the two ECUs. Better place for this might be in the FWD maint. section, I'm sure Bay 13 could give you the answer...
#8 Guest_nik858r_*
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Posted 16 April 2004 - 05:38 PM
"code 413 stored egr temp. sensor faulty signal. this car doesn't have an egr valve. car has wrong ecu you in it."
he gave me some reason why it could of taken a while for the ecu to become a problem. My car also has a problem with the trac abs signal coming on off and on. not sure if related problem or not
he gave me some reason why it could of taken a while for the ecu to become a problem. My car also has a problem with the trac abs signal coming on off and on. not sure if related problem or not
#9
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Posted 16 April 2004 - 08:18 PM
I get the TRACS / ABS lighting up when I'm driving > 2 hrs, is that what you have happening? I think it's "normal" (ie, happens to alot of '96s)
#10
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Posted 16 April 2004 - 09:18 PM
The ABS/Tracs lights are from the ABS module more than likely, fairly common failure. Options are to buy/replace the module and the other option is to send it out to Victor and he will rebuild the insides and make it better than New.
Your ECU problem is a problem. When you look up the part number for a 1996 ECU there are seven different numbers that show up, about half of them are for the 1995T5 R, the others aren't. If you didn't buy the car new, it's hard to say when the ECU got swapped. How did you do the IPD upgrade? Did you mail yours to them or did they send you one and then you sent yours in? Give them a call and let them know you are getting EGR codes and you don't have EGR they may be able to help.
Your ECU problem is a problem. When you look up the part number for a 1996 ECU there are seven different numbers that show up, about half of them are for the 1995T5 R, the others aren't. If you didn't buy the car new, it's hard to say when the ECU got swapped. How did you do the IPD upgrade? Did you mail yours to them or did they send you one and then you sent yours in? Give them a call and let them know you are getting EGR codes and you don't have EGR they may be able to help.
#11
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Posted 17 April 2004 - 12:37 AM
QUOTE(jross @ Apr 16 2004, 03:18 PM)
I get the TRACS / ABS lighting up when I'm driving > 2 hrs, is that what you have happening? I think it's "normal" (ie, happens to alot of '96s)
that happened to me too even before I got my chip! Whats the deal with it coming on?
Edited by NFGplayboy, 17 April 2004 - 12:39 AM.
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#12
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Posted 17 April 2004 - 03:01 AM
[The '96 are fully OBD-II, while the '95 aren't]
If the 95's aren't fully compliant, why is there a sticker on the hoods of both my and my wife's '95 850's saying that the care is OBD-II compliant? Are you referring to the proprietary codes or to generics?
My code reader works great for the generics--for the cost difference between the generic reader and the manufacturer's version, I'm ok with that.
But I am curious about your statement.
If the 95's aren't fully compliant, why is there a sticker on the hoods of both my and my wife's '95 850's saying that the care is OBD-II compliant? Are you referring to the proprietary codes or to generics?
My code reader works great for the generics--for the cost difference between the generic reader and the manufacturer's version, I'm ok with that.
But I am curious about your statement.
#13
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Posted 17 April 2004 - 04:06 AM
My understanding is that the '95 cars are OBD-II compliant (in principle), but that some of the diagnostics are wired different. On cars up to '95, you can retrieve codes fairly easily without expensive code readers (I think it's described somewhere in Bay 13), but on MY 96+ you have to use the OBD-II interface to access all the different computers / sensor systems. I've also heard that you cannot do this on the MY 95 cars for all the systems, which is why I say 95 isn't fully OBD-II. I don't have a '95, so I could be talking out my jerk, but I think that there are electronic differences between '95 and '96. Rich would really be the one to ask, but since I said it, I figure I should explain why before someone who knows jumps in 
#14
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Posted 17 April 2004 - 04:53 AM
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1995 Volvo 850 T-5R Currently in Storage RWD Conversion, 8-Speed Automatic Conversion, Quadruple Turbo w/ Supercharger and NOx
1995 Volvo 850 T-5R Currently in Storage RWD Conversion, 8-Speed Automatic Conversion, Quadruple Turbo w/ Supercharger and NOx
#15 Guest_Guest_nik850r_*
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Posted 17 April 2004 - 05:05 AM
i didn't buy the car new, so who knows when it was swapped. I sent my ecu to ipd. they didn't pull anything funny b/c they pointed that the number was different from the get go.
#16
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Posted 17 April 2004 - 02:53 PM
Didn't want to imply they did anything funny, you don't get that kind of service from IPD. Check with them to see if they can help correct the code setting problem.
iross
why the jump to talking about OBD II compliance? The OBD II thing has nothing to do with the ECU directly, If it "is" OBD II then the ECU has been programmed as such, and the wiring has been set up to read "P" codes, if not then you can't. If you have a 1995 that says OBD II compliant then you could more than likely get a P code reader, and plug it in and the OBD II reader would read the P codes.
The problem with the EGR codes showing up (and there is no EGR) is that the programming in the ECU is incorrect for the set up of the car. I know one of the board members that had a speed tunning chip in his 1997 and it kept setting EGR codes and his car physically doesn't have EGR, (I looked at it and verified it didn't) Eventually the problem was worked out with software changes to the ECU.
iross
why the jump to talking about OBD II compliance? The OBD II thing has nothing to do with the ECU directly, If it "is" OBD II then the ECU has been programmed as such, and the wiring has been set up to read "P" codes, if not then you can't. If you have a 1995 that says OBD II compliant then you could more than likely get a P code reader, and plug it in and the OBD II reader would read the P codes.
The problem with the EGR codes showing up (and there is no EGR) is that the programming in the ECU is incorrect for the set up of the car. I know one of the board members that had a speed tunning chip in his 1997 and it kept setting EGR codes and his car physically doesn't have EGR, (I looked at it and verified it didn't) Eventually the problem was worked out with software changes to the ECU.
#17
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Posted 19 April 2004 - 02:23 AM
Alright how bad is it to have the ABS light and the tracs light on???
It's funny, we start talking about all this on here (I had the lights come on twice before this but only for alittle while) crap starts happening. I was driving back from my girl's house tonight and I was just cruisn at 70 and the ABS and tracs light came on and stayed on. How much does it cost to replace the ABS module or whatever?
It's funny, we start talking about all this on here (I had the lights come on twice before this but only for alittle while) crap starts happening. I was driving back from my girl's house tonight and I was just cruisn at 70 and the ABS and tracs light came on and stayed on. How much does it cost to replace the ABS module or whatever?
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#18 Guest_Guest_nik850r_*
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Posted 19 April 2004 - 02:51 AM
the cost is between 400 and 500 dollars. i thought of many other ways to spin 500 dollars.
#20
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Posted 19 April 2004 - 03:27 AM
are you ef'n kidding me? Darn, this sux. 
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