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precat

  1. Care, Maintenance, and Troubleshooting
    I replaced both of the pre-cat / upstream O2 sensors in May of 2018 (recorded a video of it if it helps anyone - youtube.com/watch?v=YTlInhDg1VI) . Just got the P0037 code again this month on my 2002 Spyder and need to pass emissions. Is this code for the same sensors I replaced, or the third /...
  2. Parts and miscellaneous for sale
    UPDATE: All items sold. thanks! 2003 Pre-Cat intact Manifold: NOW $40 local pick up 2003 Cat-back Stock Exhaust:NOW$40 local pick up PM for larger pictures. Or email [email protected] Located in San Fernando Valley, can also be delivered to Santa Barbara or Ventura. Pics here:
  3. Care, Maintenance, and Troubleshooting
    RE: PreCat Removal Just got parts this week (8/26/2010) from the Toyota dealer. Part numbers have changed from the SpyderChat posted parts manual. For a 2001 MR2 Spyder: Exhaust donuts (need two): Part #90080-43036 $13.58 each Exhaust manifold gasket Part #17173-0D020 $24.18 each :cool:
  4. Care, Maintenance, and Troubleshooting
    Hello, I have searched the forum and still unsure of what parts are needed when gutting precats. I understand that a manifold gasket is needed, exhaust pipe connection gasket, 3 nuts for exhaust (because they are one time use nuts). However, one poster had toyota install new studs in manifold...
  5. Parts and miscellaneous for sale
    Anyone got an extra un-gutted pre-cat header for 2000 model, let me know!
  6. Care, Maintenance, and Troubleshooting
    I'm not a mechanic. I had a shop decat manifold. They used cheap gasket (from looks of it) and they broke top left bolt that holds heat shield. Currently everything seems to be working fine (no engine lights.) I've been told here that the gasket will surely breakup and cause havoc. I did buy...
  7. Performance Modifications
    Since the precat on my model is a huge deal, 2000 MR2 Spyder, is there a way of completely doing away with it? There is no local shops that will take care of the precat clean out and I am not sure I want to rely on me since I have a record of damaging engines... :o If so, please explain such as...
  8. Care, Maintenance, and Troubleshooting
    Own a 2001 with 87K on it - recently purchased. Because of all the precat chatter in this Forum (which I found after buying the car), I pulled the O2 sensors. Drivers side looks like a smooth mesh, but the passenger side looks like it has a crack and is burnt along the cracked edge. I'm...
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