I've got a 2000 Sunfire 2200 5spd. AFAIK and can tell from the records the injectors are still OEM from the factory with almost 200,000 miles on them. The other week I was clearing out some stuff in the garage and about to dismantle my old home-brew Bosch K-Jet test rig when I got to thinking about adapting it to test/clean/balance injectors for this car...
Last week I went out and pulled a fuel rail and injectors out of a '99 cavy and those of you who know what you're talking about will see my first problem, the injectors are wrong for the 2000+. I'm a newb with these cars and I thought the 98+ would all have the same injectors but I can see mine in the 2000 are smaller with plastic bodies and the parts yard ones have a fatter metal body.
So, here are the questions:
- Can I use the '99 fuel rail with the 2000 injectors for out of car testing? Is it the same part at the 2000 fuel rail?
- What it the usual input pressure from the pump?
- What vacuum should I put on the pressure regulator?
-Are the earlier injectors compatible with the later car other than the connectors? I see that the '99 parts have five holes and I think the newer ones have two holes, thinking the older injectors might give a better spray pattern?
- I've been doing some reading around the site and it looks like maybe other, later cars have injectors I could use too. Is there a cross reference list someplace or can anyone give me a short list of cars I should be looking at? The yard I go to most often has hundreds of GM cars with a lot of mid '90s to mid 2000s including some cobalts.
I'm planning to get a few sets of injectors from parts cars then test, clean and backflush as needed until I come up with a set with a good pattern and even flow between them and then maybe a spare set to bag up and keep on the shelf.
Thanks,
/\/\ac
Maybe this was the wrong section of the forum? I didn't see a better one though and this does relate to performance.
Can you upload a pic of your stock injectors
2.2 ecotec (stock internals) typhoon k&n in take 2 inch drop springs
The impedence of the 2 types of injectors are.different. they will bolt up the same but the wiring is different. Using the wrong ones can damage the injector drivers in the ecm.
Some 99s have the skinny high impedence injectors. Just have to find the ones manufactured after I believe it was may 99.
Care to post up pictures of your text rig?
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
