I could use a bit of help with the wife's 1989 190E 2.6... It died suddenly (in traffic, of course), but we were able to restart it. I got it home, but now it won't restart. Here's what I've checked: Ignition coil: Spark tester shows an nice white spark, easily jumps 15mm Plugs: Tester shows a white spark, but not nearly as strong. Rotor and cap look mechanically sound. Fuel pump relay: I've bypassed it with a fused jumper, and the pump runs continuously. Cold start injector... Works fine, I've applied 10v DC to it and it clicks away nice and clean... Fuel pressure.. I can't give a PSI value here, but there is fuel at the distributor, so it's getting some gas at least Throttle body plate: Held it open while cranking... made very very faint "I might start" noises, but wouldn't start.....
In desperation, I've even poured a bit of gas down the throttle body, just to make sure it had fuel. Still no start. Once or twice, it makes a very feeble attempt at firing up, but no go...
What else can I check? Could it be just a very weak spark? Any and all advice gladly accepted. Thanks, Dan Cassaro