240 No Diagnostic Code on #2 & No Start

[pete77gg]

Hi. 1991 240 Base w/B23F (Red) Engine. So what I thought to be an alternator issue was only a bad belt or bushings which is good but now...it wont start. First off, when trying to diagnose the squealing problem, I overtightened the belt (screeching for 2 seconds, a single backfire and I stopped). Checked, reinstalled w/new bushings & belts & fixed squealing issue. Now no start. It just turns over and over but doesn't even want to catch. Check fuel pumps, replace in tank pump (which has been out for a while). Both pumps working now but still no start. Clean fuse box & replace all fuses with new ones. Nope. Starter/Alt./Battery all tested fine & working. Plugs getting spark. Open oil cap/timing belt cover & belt is still on & turning freely. I go to check the OBD-1 Codes and #2 gives no code reading whatsoever- hold the button 1-3sec and just stays silent. #6 gives coolant temp sensor (which I also knew I had to replace for a while). What does it mean if I do not get any codes from #2? Where to go from here? Maybe jumped timing (but doesn't even cough or sputter at all?) ECM/CPU (the timing of this just "going" would be strange no?) Thanks...I am at loss.

[billofdurham]

Try this for the non-flashing OBD unit. It is an extract from the instructions pinned at the top of the forum.

240 OBD does not flash.pdf

(416.74 KiB) Downloaded 358 times

Both pumps working now but still no start.

Is the fuel getting as far as the engine? Try starting it again then remove one of the spark plugs. If fuel is getting there the plug should be wet. Also check the 25 amp blade fuse next to the ignition coil. The fuse holder can suffer badly with corrosion.

Bill.

[pete77gg]

Bill Thanks for your reply. I plan to do battle with the ol' Brick later in the week with your advice firmly in hand, I will follow up...if I survive...