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my white 94
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Yup, and drove it in again this morning with no issues. So far about 130 miles since I screwed with the connector with out a hiccup
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200+ miles now. Thanks for the help iroc-10, you're my hero right now lol. This one was getting close to being one of those in the yard.
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so i now have 1000 miles on it with no issues!
i love how the cpi engine will advance timing as much as it can depending upon what octane you fill it with. it runs so well on 91.
so now that im not constantly fixing it, i feel like i can start doing some of the small things i wanted to do to it. i have an efan to install, zq8 front springs and i need to pull a leaf/block the back to match. now i just need to find the time.
thanks again iroc-10. that idea needs to be a sticky.
i love how the cpi engine will advance timing as much as it can depending upon what octane you fill it with. it runs so well on 91.
so now that im not constantly fixing it, i feel like i can start doing some of the small things i wanted to do to it. i have an efan to install, zq8 front springs and i need to pull a leaf/block the back to match. now i just need to find the time.
thanks again iroc-10. that idea needs to be a sticky.
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9,475 Posts
Knowing that makes me want a CPI RCSB now.
Thats pretty awesome it can just advance timing when it sees fit.
Also, that tip should be a sticky.
Thats pretty awesome it can just advance timing when it sees fit.
Also, that tip should be a sticky.
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3,696 Posts
It was also the most powerful naturally aspirated emgine ever offered in an s10. What sucks though is that the injector is already close being maxed out in stock tune.
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The automatic timing advance probably was something the EPA said no way to in 96 when the OBD2/Emissions standards came out.
Sad really.
Sad really.
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3,696 Posts
i think its safe to say i wont have to fuk with the fuel system for a while.
but had to replace the upper hose today. it only had around 25k on it, 3 years old. those abrasion marks were from a bad install, they were there the first time i ever took that hose off.
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but had to replace the upper hose today. it only had around 25k on it, 3 years old. those abrasion marks were from a bad install, they were there the first time i ever took that hose off.
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9,475 Posts
Any updates on this thing?
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1,232 Posts
Nice truck and a great deal you got. Glad you were able to finally figure out the issues you were having with the CPI. The CPI is a great engine, runs very strong, but has lots of issues with the injector and then like you said in max tune the injector is pretty much maxed out. Headers, and free flowing catback and a good air intake will actually push the injector over 100% duty cycle at higher rpm. I found this out when i first got my 92 Sonoma GT, which was the first production truck to use the CPI engine.
Good luck on the truck.
Good luck on the truck.
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3,696 Posts
some time in june, i went to frys, when i go to leave no start, no clicking, no cranking, nothing. stuck solenoid. new starter motor, all better. 400 miles later sometime in july, cranks but no start. bad fuel pump... again. fuk these AC delco pumps, this one had less than 4k on it, and isnt even a year old. ive let it sit for another 6 weeks or so, and this morning threw a carter pump in it. it runs again, for now. im about ready to kill it with fire. i can now do the fuel pump by myself with no engine crane in about 1/2 hour ive gotten so good at it.
**** you ac delco and your cheap outsourced china bullshit, and fuk your retailers for never warrantying anything. i claimed the last 2 delco pump and they were both denied even though the check valve was broken in each and they only put out 30-50psi, and a new pump fixed the truck.
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the carter is built noticeably better. all metal body instead of plastic wrapped in sheet metal. the check valve works in this one "better" but still leaks down to 0 after a minute or so. the last 2 delco went to 0 as soon as voltage was removed from the pump.
im not getting my hopes up though.
**** you ac delco and your cheap outsourced china bullshit, and fuk your retailers for never warrantying anything. i claimed the last 2 delco pump and they were both denied even though the check valve was broken in each and they only put out 30-50psi, and a new pump fixed the truck.
the carter is built noticeably better. all metal body instead of plastic wrapped in sheet metal. the check valve works in this one "better" but still leaks down to 0 after a minute or so. the last 2 delco went to 0 as soon as voltage was removed from the pump.
im not getting my hopes up though.
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35,599 Posts
Well that sucks. I put an AC/Delco in mine about 180K ago...just recently it has to wait for the prime before it starts. I have a new pump that's been sitting on the shelf for a few years when I thought the current pump was on the way out. I guess I'll have to check country of origin. Let us know how the Carter works out.
Edit...I lied..just checked...it' a Delphi unit made in USA.
Edit...I lied..just checked...it' a Delphi unit made in USA.
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to be honest i just assumed it came from china. not that everything from china is bad (that depends on quality control), but whatever, they are shit pumps. i though maybe my truck took one out and the otehr was a fluke, but after the 3rd, i call bull shit.
im not doing any mods to this truck until the pump convinces me its going to last a while.
im not doing any mods to this truck until the pump convinces me its going to last a while.
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300 Posts
Do you want the bad news, or the worst news? I had a visit from the Airtex rep who informed me that they are making the pumps for Delphi...I have never had a bit of luck with Airtex in any vehicle, so I was a bit horrified, since I put a Delphi pump in my vehicle almost 2 years ago. So it appears we are losing the quality and gaining availability...not cool 
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35,599 Posts
When did they start?
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when i was wrenching for a living, we gave customers the choice of airtex, or something of quality(usually delco or delphi). we would warranty the labor and parts for a quality pump, but would warranty parts only if they chose the airtex. a large quantity of customers who chose the cheaper airtex, got to pay for labor twice. i simply wont install airtex brand anything in any of my vehicles. blehDo you want the bad news, or the worst news? I had a visit from the Airtex rep who informed me that they are making the pumps for Delphi...I have never had a bit of luck with Airtex in any vehicle, so I was a bit horrified, since I put a Delphi pump in my vehicle almost 2 years ago. So it appears we are losing the quality and gaining availability...not cool
unfortunately what you describe above is the way of the world these days. it happens more often than i think we all know.
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300 Posts
They have been making pumps for Delphi for over 2 years. I guess I should knock on wood that mine is working.
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I guess I'm lucky…mine has been on the shelf for several years…says Made In USA.
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