This all started when I replaced some deteriorating vacuum lines. Took it out for a spin a round the block and started missing... eventually (after about 4 miles) stalled and wouldn't start. Took it home and checked fuel pressure which turned out good. Checked the TMI module, checked good. Replaced dizzy and got it running again. I'm guessing the pickup took a dump. Timing was perfect, idle was perfect, checked TPS voltage & that was good. Ran fantastic for about 2 hours then started acting up. Would not rev past 2000 RPM. Stutter, miss, RPM drops to zero when I got to 2000 rpm. Changed spark plugs and wires at this time with little improvement, RPMs revved a little higher. Pulled KOEO codes initially got a 15 (ECM Memory) and an 18 (SPOUT out or wiring fault ). I've only gotten code 15 once. Checked the SPOUT and jumped with a paper clip to confirm that it was getting a connection. Finally got to code sequence 11/10/11. Pulled KOER codes and initially got 63 so I adjusted the TPS and code 20 for #2 Cylinder weak? Pulled KOER codes again and got 33, 44 & 94. Pulled the EGR... I don't think the EGR would have this dramatic of an effect on the performance of revving the engine, but I may be wrong. It looks like it needs to be replaced anyway, so I'll be replacing it tonight. Any recommendations are welcomed. Thanks!
I'll update this weekend after installing new EGR.
It's been running great up until now (3.5 years)
AOD to T5 conversion
High flow cats
New(er) O2 Sensors (within a couple of years)
New fuel filter
New Spark Plugs
New Dizzy
New Spark Plug wires
Run non-ethanol gas only
I'll update this weekend after installing new EGR.
It's been running great up until now (3.5 years)
AOD to T5 conversion
High flow cats
New(er) O2 Sensors (within a couple of years)
New fuel filter
New Spark Plugs
New Dizzy
New Spark Plug wires
Run non-ethanol gas only