Subject	Code 21....out of ideas.
Posted by	The Sixth on February 24, 2014 at 10:06 PM
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Message	So dead cylinders seem to be an epidemic lately. I've followed the other couple posts, but here is what I've got. Dropped a used engine in my 91TT with brand new 95 EFI. Car already had series 2 PTU. Car started up after swap, but test runs didn't feel like full power. Verified dead cylinder 6 with power balance test and so far have done the following: *Swapped coils *Swapped plugs *Checked F11, 28, and 39 grounds *Verified 12v on middle terminal of coil pack connector/plenum ground *Verified 12v on middle terminal and ground of coil pack connector *Failed visual spark test grounded to the plenum *Reseated F1 connector on ECU I kept the old style CAS but I can rule it out because the car does start? I can rule out continuity issues to the ECU since I'm seeing voltage at the coil pack (and hopefully because EFI is brand new)? I did have to re-pin the F1 connector to my original one because I broke the new one pushing it thru the firewall, but I re-checked pins and all look fine. I've swapped the PTU, and continuity tested both with similar readings. Is it still possible that both are bad? Could it be ECU related at all?
Follow Ups	Code 21....out of ideas. - The Sixth 22:06:17 02/24/14 Try making sure connector to ECU is tight. - dvice 00:41:46 02/25/14 Re: Thanks....done a few times already. (n/m) - The Sixth 10:12:18 02/25/14 You did not mention anything about Injectors - Cjw3 21:50:57 02/25/14 I got a used new style complete drop in from Woody... - The Sixth 09:47:28 02/26/14 Injectors are 100% deff good and working :) - Woody75 (Denver) 16:03:41 02/26/14 Didn't even need them, since I used a 95 harness... - The Sixth 16:17:09 02/26/14 Code 21 is calling it a PRIMARY wiring problem - Cjw3 20:23:24 02/27/14 Thanks for the input... - The Sixth 09:26:23 02/28/14 Where is the ECU that was in the Chassis?.. (n/m) - Cjw3 21:24:19 02/28/14 I've just got the single ECU... - The Sixth 10:54:29 03/03/14
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