dirttracker11x
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- Oct 29, 2012
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1990 2500 suburban 2wd auto with a 350 tbi.
Ok, recently my buddy and I replaced head gaskets and intake gaskets along with throttle body gasket. Since we put it all back together and I set timing with computer unhooked, it will not run right.
At idle the rpm's surge up and down, crappy throttle response and cant get any higher rpms out of it, in drive it just dies. We thoughr it was timing so we checked and triple checked, its all good, then we changed iac valve, helped a little but still does it.
The only possible way I can get it to idle decent and good throttle response with computer unhooked is at 20 to 28 degrees timing!!! When u plug computer up it advances it to 38 or so, but still no power in drive when u hit the gas.
Things we have changed are: Head gasket, intake manifold gasket, coolant temp sensor, idle air controll valve, map sensor, plugs, wires, cap, rotor, fuel pressure regulator, fuel filter and cleaned injectors and throttle body.
Please help wth is going on lol
Ok, recently my buddy and I replaced head gaskets and intake gaskets along with throttle body gasket. Since we put it all back together and I set timing with computer unhooked, it will not run right.
At idle the rpm's surge up and down, crappy throttle response and cant get any higher rpms out of it, in drive it just dies. We thoughr it was timing so we checked and triple checked, its all good, then we changed iac valve, helped a little but still does it.
The only possible way I can get it to idle decent and good throttle response with computer unhooked is at 20 to 28 degrees timing!!! When u plug computer up it advances it to 38 or so, but still no power in drive when u hit the gas.
Things we have changed are: Head gasket, intake manifold gasket, coolant temp sensor, idle air controll valve, map sensor, plugs, wires, cap, rotor, fuel pressure regulator, fuel filter and cleaned injectors and throttle body.
Please help wth is going on lol