Car jerks at 1500 RPM.
 

89 crx si, a6 block/z6 head, 14b, turboEdit.

Here is the deal, if you hold the car at a steady 1500 RPM in any gear the car jerks, and tonight it backfired LOUD after holding it at 1500 for about 30 seconds. My wideband reads 14.5-15.0 while holding at 1500 RPM so it isn't like I'm going extremely lean or rich at 1500. Also, if I go from a dead stop and floor it, it bogs out just as I pass the 1500 RPM mark, it almost feels like a fuel cut when I floor it, but like I said, holding a steady 1500 the WB02 says I'm fine, the car just jerks like hell. I'm thinking this may be ignition related, but I could be way off. Any suggestions are welcome.

Thanks.

Re: Car jerks at 1500 RPM.
 

rev to 6000rpm and dump clutch, problem solved :D


honstly thats a good one, only below 1500 could be fun to find.

Re: Car jerks at 1500 RPM.
 

is it trying to go in limp mode? my car does almost the same but its like at 2500 or so. my wideband reads fine but i can hear it like backfiring with little sputter.

Re: Car jerks at 1500 RPM.
 

honestly all 3 of my cars do that once I swapped or turbo'd them so ??? I thought it was due to an IACV prob, more than anything else. Best of wishes man sorry :-\, could be ign. but IDK?

Re: Car jerks at 1500 RPM.
 

try adding a bit more fuel and see what happens or even reduce the amount