97 Z71 misfire #3
#11
So i have ordered some more parts, in hopes to eliminate the problem.. Ordered a Magnaflow Catalytic Converter complete system (manifolds to muffler), as well as a new Delphi MPFI conversion fuel injection "spider".. got my fingers crossed! let you know how it goes when they get on..
#14
OK so here is the update... Valve adjustment done - no change, coolant temp sensor, pcv, cleaned MAF - no change.. New delphi MPFI "spider" harness - DONE!! RUNS Perfect and NO LIGHTS!! it was easy to do, took about 1 1/2 hours of my time and *presto* back on the road! Didn't even have to remove distributor or water neck as some suggested.. i have pics of the process (if interested) and info on where to get these Delphi MPFI units pretty cheap compared to most places..
Now my decision is what to do with the new Magnaflow Cat system when it gets here. Should i put them on? Ship them back and get refund? or just hang on to them in case my OEM ones go bad?? Got a Heck of deal on them too, so i may hang on to them..
thanks everyone for the help!
Now my decision is what to do with the new Magnaflow Cat system when it gets here. Should i put them on? Ship them back and get refund? or just hang on to them in case my OEM ones go bad?? Got a Heck of deal on them too, so i may hang on to them..
thanks everyone for the help!
#16
I had the same thing happen to mine. Wish I would have seen this post earlier. Yeah, just do the starter fluid thing around the intake to see if the RPM's increase. Or, you can tell your vacuum leak by taking off the Engine Oil Fill cap, if you can tell an RPM change, or your truck dies, or you can put your hand over the oil fill and you have suction = intake vacuum leak. $100 part could've saved you some cash on all those other parts.
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