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New Injectors on 83' wont boost now...?


83Starion-11
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Hey all, I recently put in a set of new 83' injectors on my 83' starion, and now I can't boost...The car is completely stock, but I have replaced more original parts then I can list.

 

The car can idol great, rev up great (curb side), but when I get to about 3000 RPM driving, or get into the boost (in any gear), my RPM guauge skips around and the car stumbles...not sure what causes this. If anyone has any ideas or questions please let me know. There is no fuel smell and exhaust is clean, turbo feels good and Is not leaking...

 

Could it be a bad coil pack? Timing off?

 

Thanks! I hope to drive her again soon.

 

-Andrew

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I hope you replaced the injector clips along with the new injectors

 

83 injectors are completely different than 84-89 injectors. For that matter the 83 TB is also completely different.

 

http://prozac.orconhosting.net.nz/eciguide/rebuild.html

 

83 injectors

http://prozac.orconhosting.net.nz/eciguide/injectorsfitteds.jpg

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83 injectors are completely different than 84-89 injectors. For that matter the 83 TB is also completely different.

 

http://prozac.orconh...de/rebuild.html

 

83 injectors

http://prozac.orconhosting.net.nz/eciguide/injectorsfitteds.jpg

Learn something new every day haha
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It took us about six months to find, and they were OEM and have been sitting since for 30 years plus, but we had them cleaned and checked and they run good, I was thinking maybe the fuel pressure is all messed up as well, but haven't been able to measure it yet :/ The company we bought them from said they were hiding on a back shelf and were the only ones left lol...they didn't even think they had them still...
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Well you lucked out and probably got the last OEM new set in existence.

 

Yes,I agree! Those are the only ones left, the ones the parts houses misplaced!

 

One injector will drive fine up to 3000 RPM. Above that, or in boost, and it requires the second injector to act right. Unless your really, really feather the throttle, you can keep revving and actually drive the car. If that is the case, then there is only one injector making good connection to the harness, or one of the injectors needs cleaned like ucw58 said.

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  • 2 weeks later...
  • 7 months later...
Ok update on this. So finally got around to having the injectors cleaned and tested , they both tested good and no leaks. The paper work says 115-116cc flow??? They part on the injectors are 850cc...So I am a bit confused there. Going to talk with the guy on it tomorrow. Car runs great at idol and I can drive around, but once into boost, it studderS a bit. I am going to check fuel pressure as well when I can. Any recommendations for a fuel pressure gauge?
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  • 2 weeks later...
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