84 se bogs when accelerating (Page 2/2) katie80 AUG 02, 10:43 AM quote Originally posted by Patrick: Although it's not as simple to test as with the 2.8, it would tell you a lot to know what the fuel pressure actually is. I've had "bogging" issues with my '84 in the past. Here is a thread documenting my experiences. so I actually did a bit more testing, turns out I had a small vacuum leak, plugged it back in and drove it. drove fine for about 10 minutes but gave me the same code again. got a fuel pressure tester. it's at a solid 11 psi (dips a little when I rev the engine though). is that a good reading? Patrick AUG 02, 11:37 AM quote Originally posted by katie80: got a fuel pressure tester. it's at a solid 11 psi (dips a little when I rev the engine though). is that a good reading? Specs call for 9-13 psi. How low does it dip? katie80 AUG 02, 02:08 PM quote Originally posted by Patrick: Specs call for 9-13 psi. How low does it dip? only to around 10, nothing major. I just set my ignition timing to 8* as it calls for in the Haynes manual. it wasn't super off but it's correct now. same problem. it doesn't hesitate so much as it bucks now. I step on the gas at all and it just lurches and bucks. it'll only accelerate if I press gently on the gas pedal. Xenoblast AUG 02, 03:35 PM quote Originally posted by katie80: only to around 10, nothing major. I just set my ignition timing to 8* as it calls for in the Haynes manual. it wasn't super off but it's correct now. same problem. it doesn't hesitate so much as it bucks now. I step on the gas at all and it just lurches and bucks. it'll only accelerate if I press gently on the gas pedal. not sure if its the same way on the 4 cylinder fieros, but for the 6 cylinders you need to ground the diagnostics port and the car needs to be warmed up. Did you do this? katie80 AUG 02, 05:28 PM quote Originally posted by Xenoblast: not sure if its the same way on the 4 cylinder fieros, but for the 6 cylinders you need to ground the diagnostics port and the car needs to be warmed up. Did you do this? it is the same way, I followed the instructions on the decklid sticker.