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.
CSFI to MPFI conversion identification
- Thread starter HankHill
- Start date
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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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