 1.7 to 2.0, are the mps's the same |
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| nycchef |
 Apr 17 2007, 07:24 PM
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mechanical moron  Group: Members Posts: 952 Joined: 28-November 05 From: new york city n.y. Member No.: 5,202 Region Association: None  |
putting a 2.0 i my 73 orange money pit. will my mps work with a 2.0 or are they different?
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| 914Sixer |
Apr 17 2007, 07:47 PM
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#2
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914 Guru Group: Members Posts: 8,883 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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Nope, 1.7 is 049. 2.0 is 037 for 73, 74-76 is 043. You will need the matching ECU and the correct cylinder head temp sender for each year.
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| drewvw |
Apr 17 2007, 08:00 PM
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#3
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new england car guy Group: Members Posts: 1,631 Joined: 24-February 06 From: Boston, MA Member No.: 5,630 Region Association: North East States |
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| jk76.914 |
Apr 17 2007, 09:53 PM
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Senior Member Group: Members Posts: 809 Joined: 12-April 05 From: Massachusetts Member No.: 3,925 Region Association: North East States |
Last theory I heard was that they ARE the same, just calibrated differently. You can recalibrate your 2.0 to 1.7 specs, and away you go!
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| jk76.914 |
Apr 17 2007, 09:54 PM
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#5
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Senior Member Group: Members Posts: 809 Joined: 12-April 05 From: Massachusetts Member No.: 3,925 Region Association: North East States |
QUOTE(jk76.914 @ Apr 17 2007, 11:53 PM)  Last theory I heard was that they ARE the same, just calibrated differently. You can recalibrate your 2.0 to 1.7 specs, and away you go! Or, you can recalibrate your 1.7 to 2.0 specs! (what I meant to say) |
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| computers4kids |
Apr 17 2007, 10:55 PM
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#6
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Love these little cars! Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None |
QUOTE(jk76.914 @ Apr 17 2007, 08:54 PM) QUOTE(jk76.914 @ Apr 17 2007, 11:53 PM) Last theory I heard was that they ARE the same, just calibrated differently. You can recalibrate your 2.0 to 1.7 specs, and away you go! Or, you can recalibrate your 1.7 to 2.0 specs! (what I meant to say) Yep, just have it re-calibrated. Email Blyseng or pbanders |
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| Dr Evil |
Apr 18 2007, 10:29 AM
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#7
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Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
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Bleyseng is the one who does the recalibrations. To work well you will need this done. You are lucky in that you have a 73 brain in your car. It was the same for 1.7 and 2.0. You will need to make sure to use the 2.0 injectors and you will need to either find (not likely) or modify the CHT on the engine as the 73 CHT was a special one with a different value that I can not remember. You can always try to take the one off of your 1.7 as it should be the same, and the 2.0 you get will likely have one in it, but I would check resistances of the CHT against the values listed on pbanders page in the link above.
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| pbanders |
Apr 18 2007, 10:42 AM
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#8
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Senior Member Group: Members Posts: 939 Joined: 11-June 03 From: Phoenix, AZ Member No.: 805 |
I don't do recalibrations, I just provide info on how to do it, see my site. The only difference between a 1.7 and 2.0 MPS is how it's calibrated. Both have exactly the same part-load calibration, they differ only in how they richen the mixture under medium to full-load conditions.
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