Toyota MR2 Message Board - View Single Post

blazer9903 · 05-20-2007, 11:00 AM

I've got it. You can get them on Ebay for about $75-100 - but if you post your codes I'll look it up for you. They differ from 85-87 and 88-89 -

Solving them is a whole other story though. I've gotten a 12 (O2 sensor) and 21 (No RPM signal) on my '88 forever for no found cause. I know the 12 is the ECU itself b/c when swapped it disappears, 21 is always coding and as of yet, no idea why (in both cases all the diagnostics mentioned by seven_mgte check out OK). So I've lived with the constant check light

05-20-2007, 11:00 AM	#4 (permalink)
blazer9903 No Skills Join Date: Apr 2007 Location: St. Louis, MO Posts: 14 Thanks: 0 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	I've got it. You can get them on Ebay for about $75-100 - but if you post your codes I'll look it up for you. They differ from 85-87 and 88-89 - Solving them is a whole other story though. I've gotten a 12 (O2 sensor) and 21 (No RPM signal) on my '88 forever for no found cause. I know the 12 is the ECU itself b/c when swapped it disappears, 21 is always coding and as of yet, no idea why (in both cases all the diagnostics mentioned by seven_mgte check out OK). So I've lived with the constant check light