SunlitComet
OBS Jedi-Do Good
which links? all the ones i see work just fine.
CSFI to MPFI conversion identification
- Thread starter HankHill
- Start date
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1999 Z56 PPV
TYF Newbie
??
when I look this up on amazon the price is 360 $ , not 250 $ . amazon also shows plenum gaskets that are often purchased together . do I need that gasket set to put the mpfi in ?
when I look this up on amazon the price is 360 $ , not 250 $ . amazon also shows plenum gaskets that are often purchased together . do I need that gasket set to put the mpfi in ?
SunlitComet
OBS Jedi-Do Good
Well the price has gone up since then and yes you need the gaskets.
SunlitComet
OBS Jedi-Do Good
typically amazon has the best prices.
Last week I looked on amazon and found the ACDelco 217-3029 for $266.47 and the Delphi FJ10566 for $241.85. They stated both parts would fit my '99 Tahoe 5.7. Today I'm looking at them again and the Delphi is $349 and it states the ACDelco now does not fit my vehicle.
Can anyone tell me if the ACDelco 217-3029 fits a '99 Tahoe 5.7? I've found other sites stating it does, but I want to make sure before I order.
Thanks everyone.
Can anyone tell me if the ACDelco 217-3029 fits a '99 Tahoe 5.7? I've found other sites stating it does, but I want to make sure before I order.
Thanks everyone.
SunlitComet
OBS Jedi-Do Good
It has eight injectors. It will work.
2000tahoeZ71
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The Delphi is back to 241.85.
Very strange. I've recenlty found amazon to not be 100% accurate. I did purchase the AC Delco version and installed it - problem solved. The toughest part was bending the new injetor tubes without kinking them. In the end, it went well and I am more than pleased with the end results.
2000tahoeZ71
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Yea they are a PITA to get right without kinking. I have found getting them warm in front of a heater or with a hair dryer gets them a little more pliable.
SunlitComet
OBS Jedi-Do Good
Nice job.
SunlitComet
OBS Jedi-Do Good
mine was glass beaded at an engine shop. i got it first from another member here when mine had the coolant fitting threads get chewed up upon removal of the fitting. supposed to trade parts for it I think but I don't think I ever did. have not seen him around for a long while now.
Amazing that there does not seem to be an aftermarket intake available for our engines. I would have upgraded my manifold as well had there been one available.
So what happened with the trade, seller went first and never responded back?
This was the last new manifold I bought. (For an Olds Big Block.)
So what happened with the trade, seller went first and never responded back?
This was the last new manifold I bought. (For an Olds Big Block.)
Last edited:
SunlitComet
OBS Jedi-Do Good
That is his manifold he sent me after it was cleaned I was gonna send him some spare parts after I got moving from California in late 2011 but I got tied up.
Truck is now stumbling at idle what should I be looking for?
So it was finally time for me to upgrade from the old SCPI spider injector to the new MPFI and get some other work done. So on the weekend I cut out my catalytic converts and installed some new aftermarket ones and new O2 sensors, changed the oil and threw in some fresh ACDelco plugs. Then I tore into the engine and unhooked the million electrical connectors, pulled off the cover and swapped in the new MPFI injector from NAPA.
So day one everything seemed to be running better. Except I was still getting an OBDII error code that Bank 2 Sensor 1 wasn’t preheating. I swapped the two front O2 sensors from side-to-side and haven’t seen the error since. BUT around day three the engine now doesn’t want to start until I have cranked it for 10-15 seconds and runs really rough at idle. In the truck it feels horrible but when I pop the hood it’s hardly noticeable. Under acceleration it seems to be fine. Also it smells like it may be idling rich but I’m not sure how to confirm that.
What should I be looking for? At this point in the repairs I’d hate to bring it into a shop but that might be my only hope.
So it was finally time for me to upgrade from the old SCPI spider injector to the new MPFI and get some other work done. So on the weekend I cut out my catalytic converts and installed some new aftermarket ones and new O2 sensors, changed the oil and threw in some fresh ACDelco plugs. Then I tore into the engine and unhooked the million electrical connectors, pulled off the cover and swapped in the new MPFI injector from NAPA.
So day one everything seemed to be running better. Except I was still getting an OBDII error code that Bank 2 Sensor 1 wasn’t preheating. I swapped the two front O2 sensors from side-to-side and haven’t seen the error since. BUT around day three the engine now doesn’t want to start until I have cranked it for 10-15 seconds and runs really rough at idle. In the truck it feels horrible but when I pop the hood it’s hardly noticeable. Under acceleration it seems to be fine. Also it smells like it may be idling rich but I’m not sure how to confirm that.
What should I be looking for? At this point in the repairs I’d hate to bring it into a shop but that might be my only hope.
Well I'm having the hard start, initial rough idle and horrid MPGs (9.1 mpg) on the last tank driving like an old man.
I had already planned on doing the intake manifold gaskets and Summit Racing Distributor next month, so I guess I will be the perfect time to replace of the spider.
I'm also thinking of doing that Taylor Vmax intake manifold spacer (11011)..... is this worth it. I'd rather just do everything at once and be done.
I had already planned on doing the intake manifold gaskets and Summit Racing Distributor next month, so I guess I will be the perfect time to replace of the spider.
I'm also thinking of doing that Taylor Vmax intake manifold spacer (11011)..... is this worth it. I'd rather just do everything at once and be done.
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