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Replaced my plugs. Changed distributor to get it as close as I could. It’s not a factory pick up coil so there was no notch on it. :l BUT put it all back together and she sounds AMAZING! Runs like brand new. No throttle lag no missing sounds loud. I thank you guys for ALL your help!!! Whoever put that distributor in just didn’t know what they were doing I guess. Now I have to fix my p0443 and this truck will be all set!
Okay. Well my plugs already fouled out. So I’m gonna replace those tomorrow. But I’ll put the distributor back in the right way.. hopefully that’ll cure my backfire and I can take it to emissions. I keep getting a code for my purge solenoid again after replacing my bad one. But I knew it needed replaced because it was stuck open. Hopefully I can get it all squared away tomorrow figure it out and this truck will be back to normal. It’s been nothing but a hassle since I did that tune up.
But reading that link he doesn’t answer the main question. Will I mess up my fuel sync putting my distributor back in the right way?
Well gents, I decided to focus on the firing order like peshawa suggested. Instead though I found TDC on my cylinder number 1. Guess where the rotor was pointing? Cylinder number 8. One off from where cylinder 1 is supposed to start. Decided to redo my wires, fired her up and she idles runs, does it it all. Now, my tps readings, I was getting my 5 volt refrence. But I didn’t back probe the connector. I tried actually and was scared to hurt the connector honestly. I couldn’t probe it correctly even using a paperclip. I’m gonna search for some tpins. I know I have some somewhere. But also, now my distributor firing order is 1 off from the factory design. Is this going to be okay? Or something I should look into fixing? And also, it runs just a tad bit rough not much. My plugs are completely gone though.. and I just replaced them. They’re as black as the night. Think if I throw new ones in it’ll be okay?
Edit: after some reving and checking things out, it’s still backfiring through the intake around 2500rpm. Not too bad though. Tells me the timing is still a bit off.
Actually looking at my sensor (TPS) as I was doing these tests I’ve realized mine isn’t slotted. It can only go in there one way and can not be adjusted. I mean you can put it in upside down lol. But other than that it will only go in one way the right way. So I couldn’t even adjust it.
I did try the battery thing, I made sure it was good also. I’ve tried the pcm reset with disconnecting the negative battery cable with the key in the on position for 30 seconds. How would I do the manual check for the sensor sync? My scan tool is just on my phone and I can read live data and such. Nothing too fancy like one of those snap ons, though I wish I can afford one. Lol. I will try the tps adjustment now. And make sure my firing order is correct. I’ll get back to you in about an hour.
Autopart store wants 150 to rent the tester.. I don’t have enough to rent it yet so I haven’t got to check. And the fuel filter is apart or the pump I assume because the lister for the filter shows non serviceable. So it might be in the tank. I’m not sure. I assumed the pressure was OK though if I can keep reving it and it’ll stay started. Everyone it died it was because my foot wasn’t on the throttle
I took this video for a friend of mine. It still is hard to tell. But I figured it’s something I can show you guys. I’ll check the firing order later. I’ve looked it over plenty of times because it’s stamped right on the plenum. But I’ll check once again later just to be safe.
The only thing I can see on the scan tool regarding the tps is just the tps %. Closed throttle I’m still getting 11%. If I unplug it it goes to 100%. If I floor it and go wide open my highest reading is 70%. I even opened the throttle manually under the hood and looked at my reading and it’s still 70%. I can’t get it to 100%. That I’m not sure is normal. But why would the truck backfire?
Replaced the crank, nothing changed. It seems to be running lean with my fuel trim at 30%. That’s only short term though. I cant keep it started long enough to read long term. I decided to see if an injector may be leaking. Nothing. While those were out I decided hey, might as well replace the intake gaskets because I know those plenum pan gaskets go bad and there was oil in my plenum. Just got done. Still nothing changed. It backfires if I Rev it long enough. It will only start with my foot on the throttle. Idle air control I know is good. The old one good but I even replaced it just because it was a cheap part and I already had the old one out. I can’t figure it out. All I did to the truck was a tune up. And now all of this happening. I don’t know if this is coincidence or what. But I seriously am out of ideas.