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<blockquote data-quote="ag1355" data-source="post: 423314" data-attributes="member: 288">I had a bogging problem sometime last year.&nbsp; Car ran fine when engine was cold or when weather was cool outside.&nbsp; In the afternoon when the engine was hot the car loses power below 3,000 RPM.&nbsp; You can floor it but the engine speed climbs slowly.&nbsp; Once it reaches past 3,000 it shoots up suddenly.&nbsp; Slopes were a real problem.&nbsp;Tried swapping the following items and it did not help.1. AFM2. Ignition coils3. Fuel pump4.&nbsp; Injectors and fuel pressure regulator5.&nbsp; ECU coolant sensor6.&nbsp; ECU relays7.&nbsp; Crankshaft and camshaft position sensors8.&nbsp; Catalytic converter&nbsp;&nbsp;The problem was finally traced to the Evaporative emmision control system (EVAP).&nbsp; The fuel vapor hose from the charcoal canister (purge tank) to the intake manifold was disconnected and plugged.&nbsp; This solved the problem as the charcoal canister and valve were bypassed.&nbsp; I think the problem was due to either the electrical purge valve or the charcoal canister.&nbsp; I just plugged the hoses and did not replace the above.&nbsp; Car runs fine till today</blockquote>

[QUOTE="ag1355, post: 423314, member: 288"] I had a bogging problem sometime last year. Car ran fine when engine was cold or when weather was cool outside. In the afternoon when the engine was hot the car loses power below 3,000 RPM. You can floor it but the engine speed climbs slowly. Once it reaches past 3,000 it shoots up suddenly. Slopes were a real problem. Tried swapping the following items and it did not help. 1. AFM 2. Ignition coils 3. Fuel pump 4. Injectors and fuel pressure regulator 5. ECU coolant sensor 6. ECU relays 7. Crankshaft and camshaft position sensors 8. Catalytic converter The problem was finally traced to the Evaporative emmision control system (EVAP). The fuel vapor hose from the charcoal canister (purge tank) to the intake manifold was disconnected and plugged. This solved the problem as the charcoal canister and valve were bypassed. I think the problem was due to either the electrical purge valve or the charcoal canister. I just plugged the hoses and did not replace the above. Car runs fine till today [/QUOTE]

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