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Underbody braces, turbos and more!

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PostPosted: Mon Jan 06, 2014 10:29 pm 
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Joined: Mon Feb 28, 2005 7:11 pm
Posts: 140
Location: SE
1990 base model 3/5 metro
i have never had a CEL... so i never checked the code reader....DO'H
fuel economy been getting worse...
NO CEL... pulling my hair out.
replaced the O2 sensor the other day....
still bad
bought a FSM for my 94... started diag process checking the sensors
the FSM doesn't have a check for the ECT sensor on the back of the throttle body only procedure to replace.
i know it's running in open loop and trying to get it back to closed loop
FE used to be mid-high 40's..... slowly creeping down to mid 30's
so i installed the FUSE..... O2 and ECT out of spec.....
so the O2 probably was a good idea.
.....

now the next question....
i have checked oreileys and advance.... i am not seeing the correct sending unit.... any help?????


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PostPosted: Mon Jan 06, 2014 10:43 pm 
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Joined: Fri Jan 07, 2005 2:46 pm
Posts: 883
Location: Arizona
Have you checked RockAuto.com or Ebay ?


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PostPosted: Mon Jan 06, 2014 11:15 pm 
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Joined: Mon Feb 28, 2005 7:11 pm
Posts: 140
Location: SE
looking at NAPA....

Part Number: MPE TS5520SB

and

Part Number: ECH TS5520

but i think they are the AIR temp unit....IAT


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PostPosted: Mon Jan 06, 2014 11:31 pm 
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Joined: Mon Feb 28, 2005 7:11 pm
Posts: 140
Location: SE
might this be the one?

http://www.ebay.com/itm/Original-Engine ... 74&vxp=mtr


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PostPosted: Mon Feb 10, 2014 11:52 pm 
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Joined: Mon Feb 28, 2005 7:11 pm
Posts: 140
Location: SE
well, I'm at least back up to the low 40's.... temp sensor fixed the non CEL....


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