89 caprice Vats?
#1
89 caprice Vats?
Im trying to figure out if 89 caprices had vats? I have checked with a chevy parts dept and they said 89 caprices didnt have 5.7 tbi engines? (which is the ecm Im trying to find). Autozone sells a 89 caprice ecm for 5.7 tbi but they dont know if it has vats turned on? This is for an 88 ta with a 5.7 tbi so the car doesnt have vats. I found this web site that shows the caprice had vats starting in 94? http://www.ricksfreeautorepairadvice...-theft-systems
Last edited by 88TransAmGuy; 05-13-2012 at 05:09 AM.
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Re: 89 caprice Vats?
i believe caprice had TBI in 88. it seems like caprice had VATS before 94, like 91 or 92, but my book also shows 94 as the start.
VATS is in the removable "chip" thats in the ECM, not the ECM itself.
VATS is in the removable "chip" thats in the ECM, not the ECM itself.
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Re: 89 caprice Vats?
looking at the ECM diagram in alldata, 89 caprice, 5.7TBI, no VATS circuit is shown, so it should not be enabled in the calibration.
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Re: 89 caprice Vats?
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Re: 89 caprice Vats?
Sorry this is a little late. I own an '89 Caprice, and it originally came with the 305 (5.0L) V8. It is the first year for TBI in the Caprice (my friend owned the 1988 and it was carbureted) Apparently there were very few of the 5.7L V8s made, as I have had a number of GM service counter clerks tell me that their computers don't even show a 5.7L V8 for that year. I believe that the 5.7L only came in the base 'caprice' model (not the classic or brougham), and it is possible that they only came as police package cars. I have, in fact, seen an '89 5.7L caprice in a junkyard in California, as a police package (I ripped out the '8746 ECM among other things) and it had the ANLU chip in it. I would suggest soldering the G2 adapter (sold by Moates) into the ECM and popping in a burned copy of the ANLU chip.
My service manual (the GM original, not the cheapo Haynes) does have the 5.7 L option, however, and there is no VATS circuits listed in any of the wiring diagrams for any engine type of that year.
My service manual (the GM original, not the cheapo Haynes) does have the 5.7 L option, however, and there is no VATS circuits listed in any of the wiring diagrams for any engine type of that year.
#12
Re: 89 caprice Vats?
Sorry this is a little late. I own an '89 Caprice, and it originally came with the 305 (5.0L) V8. It is the first year for TBI in the Caprice (my friend owned the 1988 and it was carbureted) Apparently there were very few of the 5.7L V8s made, as I have had a number of GM service counter clerks tell me that their computers don't even show a 5.7L V8 for that year. I believe that the 5.7L only came in the base 'caprice' model (not the classic or brougham), and it is possible that they only came as police package cars. I have, in fact, seen an '89 5.7L caprice in a junkyard in California, as a police package (I ripped out the '8746 ECM among other things) and it had the ANLU chip in it. I would suggest soldering the G2 adapter (sold by Moates) into the ECM and popping in a burned copy of the ANLU chip.
My service manual (the GM original, not the cheapo Haynes) does have the 5.7 L option, however, and there is no VATS circuits listed in any of the wiring diagrams for any engine type of that year.
My service manual (the GM original, not the cheapo Haynes) does have the 5.7 L option, however, and there is no VATS circuits listed in any of the wiring diagrams for any engine type of that year.
No VATS on Caprice, at least the boxy style.
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Engine: LO5 350 (TBI 220)
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Re: 89 caprice Vats?
The 5.7L was ONLY available for 9C1 cars (aka cop cars). This was true from 1980 or '81 until the early '90s. I own both of these cars mentioned above.
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Re: 89 caprice Vats?
just an fyi any gm car with vats having a chip in the key can be bypassed by measureing the resestance in ohms of the key chip and going to radio shack and buying that same resestance in resestors then soldering them inline with the vats module will permenatly bypass the vats system
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Car: 1985 IROC-Z28
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Re: 89 caprice Vats?
just an fyi any gm car with vats having a chip in the key can be bypassed by measureing the resestance in ohms of the key chip and going to radio shack and buying that same resestance in resestors then soldering them inline with the vats module will permenatly bypass the vats system
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Car: '89 Caprice Classic LS Broughm
Engine: 350 V-8 5.7
Re: 89 caprice Vats?
I see a lot of knowledge in this post.im New to the boards. I had a few questions. I have an '89 caprice LS Broughm, I took the 305 out and had a brand new 350 built and dropped in.Its TPI, I upgraded the cam, and got some hooker headers on there, changed fuel injectors,distributor,plugs wires to run the 350. What chips and sensors do I need to change seeing that the ECM is still 305 minded? Thanks in advance.
#17
Re: 89 caprice Vats?
I see a lot of knowledge in this post.im New to the boards. I had a few questions. I have an '89 caprice LS Broughm, I took the 305 out and had a brand new 350 built and dropped in.Its TPI, I upgraded the cam, and got some hooker headers on there, changed fuel injectors,distributor,plugs wires to run the 350. What chips and sensors do I need to change seeing that the ECM is still 305 minded? Thanks in advance.
#18
Re: 89 caprice Vats?
I see a lot of knowledge in this post.im New to the boards. I had a few questions. I have an '89 caprice LS Broughm, I took the 305 out and had a brand new 350 built and dropped in.Its TPI, I upgraded the cam, and got some hooker headers on there, changed fuel injectors,distributor,plugs wires to run the 350. What chips and sensors do I need to change seeing that the ECM is still 305 minded? Thanks in advance.
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Car: '89 Caprice Classic LS Broughm
Engine: 350 V-8 5.7
Re: 89 caprice Vats?
Vss mods. MemCal... im not hip to any of that. LoL, I listen well though. I know my block is a late model 350 86-95.. I was under the impression that TPI & TBI where the same thing. What is the difference?
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Car: 1983 G20 Chevy
Engine: 305 TPI
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Re: 89 caprice Vats?
Wrong. 1988 was the first year for TBI, however it was only available on the 4.3L. The 5.7L was ONLY available for 9C1 cars (aka cop cars). This was true from 1980 or '81 until the early '90s. I own both of these cars mentioned above.
No VATS on Caprice, at least the boxy style.
No VATS on Caprice, at least the boxy style.
#21
Re: 89 caprice Vats?
TPI (tuned port) engines were only in F cars from 1985 -1992 and Y body until 91. the early ones were MAF system engines and starting in 1990 they were MAP. Two entirely different systems and each had its own computer and Memcals (the part in the computer with the program) of course the sensors and harness are different also. 1985 engines had a totally different computer system. VATs is the security system for late 89-92 cars that is programmed into the Memcal and prevents fuel pump action and starting if proper key is not used. VSS is vehicle speed sensor and they are different between MAF and MAP as is the spark and knock control among other things. So you need to know what the engine and TPI system is before you can do anything.
#22
Re: 89 caprice Vats?
Not in Canada. We still ran non-CCC quadrajets up until '87/'88 on the G & B bodies. I never realized TBI was in Caprices that early in the US. I have seen one TBI Monte Carlo once here. And the speedo was in MPH.
#23
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Engine: LO5 350 (TBI 220)
Transmission: 200R4
Axle/Gears: 2.73
Re: 89 caprice Vats?
I see a lot of knowledge in this post.im New to the boards. I had a few questions. I have an '89 caprice LS Broughm, I took the 305 out and had a brand new 350 built and dropped in.Its TPI, I upgraded the cam, and got some hooker headers on there, changed fuel injectors,distributor,plugs wires to run the 350. What chips and sensors do I need to change seeing that the ECM is still 305 minded? Thanks in advance.
As for the ECM, my car will run off the 305 stock chip, but not well. I would recommend learning how to burn your own chip and investing in that technology if you are interested in making the car run well. I did and am quite happy with the result.
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Car: '89 Caprice Classic LS Broughm
Engine: 350 V-8 5.7
Re: 89 caprice Vats?
I swapped out my 305 for a 350 in my '89 Caprice. It was (and still is) TBI. Unless you rewired it, it's probably still wired for the TBI.
As for the ECM, my car will run off the 305 stock chip, but not well. I would recommend learning how to burn your own chip and investing in that technology if you are interested in making the car run well. I did and am quite happy with the result.
As for the ECM, my car will run off the 305 stock chip, but not well. I would recommend learning how to burn your own chip and investing in that technology if you are interested in making the car run well. I did and am quite happy with the result.
#25
Re: 89 caprice Vats?
Burning is not for everyone. If motor is mostly stock, it's a lot cheaper and easier to buy one. Check around, there are people that sell them.
PROM or more precisely EPROM or EEPROM, is the same as "chip" It is part of the Memcal inside the ECM and contains the program specific for your engine/car.
PROM or more precisely EPROM or EEPROM, is the same as "chip" It is part of the Memcal inside the ECM and contains the program specific for your engine/car.
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Engine: LO5 350 (TBI 220)
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Re: 89 caprice Vats?
I would agree, burning is not for everyone. It is possible to contact a company and pay them to burn a chip for you. I have never done this, although if you read the boards, many people here find that such chips run rich (as they don't want to be responsible for blowing up your engine with a lean chip) and some complain about them. With a different cam, new injectors, etc., I would suspect that you might need a new chip to make the car run properly.
As for me, I thought that the time (and there was a lot of time) invested in reading the boards and links here, along with the money invested was worth it. You need to read the stickies at the top of this thread, particularly the one about a guide to PROM burning. It's a bit overwhelming at first, but if you find yourself curious and interested, and not thoroughly turned off, it might mean burning is for you. Otherwise, I'd suggest contacting one of the companies that burns such chips and going from there.
As for me, I thought that the time (and there was a lot of time) invested in reading the boards and links here, along with the money invested was worth it. You need to read the stickies at the top of this thread, particularly the one about a guide to PROM burning. It's a bit overwhelming at first, but if you find yourself curious and interested, and not thoroughly turned off, it might mean burning is for you. Otherwise, I'd suggest contacting one of the companies that burns such chips and going from there.
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