Jizzle Juice Posted August 21, 2008 Report Share Posted August 21, 2008 So i replaced my fuelpump some couple months ago. And every so often my car will at like its dying. itll rev below 1k then go up then itll sputter and fall flat on its ass. Ive rewired the pump that seemed to help but then i could be drivin and you can feel it losing fuel threw the pedal. Im about tired of it cause it does it at the worst times any ideas?? Quote Link to comment Share on other sites More sharing options...
V8 Beast Posted August 21, 2008 Report Share Posted August 21, 2008 Does it start right up afterwards or do you need to wait? What do you do after it cuts off to get it running again? Does it do it in WOT or normal driving? First steps... Make sure injectors are not clogged Replace the fuel filter. Make sure your gauge is reading correctly. Check for wiring problems. Quote Link to comment Share on other sites More sharing options...
SRTurbo04 Posted August 21, 2008 Report Share Posted August 21, 2008 have you chekd to see if you have gas, you do hang around phil sometimes your probably didnthave gas.... lol Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 22, 2008 Author Report Share Posted August 22, 2008 It starts right up after. It happens at normal and WOT. All i do is start it but it acts up usually. and if i let it sit it'll be ok. whats the best way to check if the injectors are clogged?? Quote Link to comment Share on other sites More sharing options...
Guest 614Streets Posted August 23, 2008 Report Share Posted August 23, 2008 Watch what your fuel psi is when this is happening , test for a weak pump , bad fuel pressure regulator, plugs. Not much you can do yourself about testing the injectors without a good scanner if the problem is intermitent. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted August 23, 2008 Report Share Posted August 23, 2008 sounds like a dirty MAF or an air leak after the MAF Quote Link to comment Share on other sites More sharing options...
Rotarded1647545491 Posted August 23, 2008 Report Share Posted August 23, 2008 Check your voltage at the pump. 10 year old wires degrade and increase in resistance. I had to completely rewire from the fuse block back in my FD at 11 years due to a 2 volt drop. Quote Link to comment Share on other sites More sharing options...
Zach1647545520 Posted August 24, 2008 Report Share Posted August 24, 2008 He has an after market walbro pump which he had to modify to make work. Just to help everyone out. Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted August 24, 2008 Report Share Posted August 24, 2008 sounds like a dirty MAF or an air leak after the MAF sounds like a bad maf imo Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 25, 2008 Author Report Share Posted August 25, 2008 Imo?? Quote Link to comment Share on other sites More sharing options...
SinisterSS Posted August 25, 2008 Report Share Posted August 25, 2008 Brandon my car was vapor locking friday night, I checked my fuel pressure and its at 40psi should be 55-60psi. I'm gonna try a fuel pressure regulator Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 25, 2008 Author Report Share Posted August 25, 2008 When r u doin that?? Quote Link to comment Share on other sites More sharing options...
SinisterSS Posted August 25, 2008 Report Share Posted August 25, 2008 When r u doin that?? tonight Quote Link to comment Share on other sites More sharing options...
Farkas Posted August 25, 2008 Report Share Posted August 25, 2008 I was going to agree that it could be a faulty MAF or air meter, whatever it is in those cars. But issues could also be in the fuel system.. fuel injectors, fuel filter and even your new pump. I've heard MANY stories of people simply getting bad Walboro pumps all together. Oh, I haven't just heard about bad pumps, but I happened to have dealt with a bad one personally that drove a couple of my friends up the wall. Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 25, 2008 Author Report Share Posted August 25, 2008 At work?? Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 26, 2008 Author Report Share Posted August 26, 2008 So this is what i pulled of the scan tool......... manifold absolute pressure barometric pressure sensor circuit high input. Any ideas? Quote Link to comment Share on other sites More sharing options...
Zach1647545520 Posted August 26, 2008 Report Share Posted August 26, 2008 All Data should have a trouble shooting for that code. Quote Link to comment Share on other sites More sharing options...
phil Posted August 26, 2008 Report Share Posted August 26, 2008 So this is what i pulled of the scan tool......... manifold absolute pressure barometric pressure sensor circuit high input. Any ideas? code term= ls1 fucking fails!!! Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted August 26, 2008 Report Share Posted August 26, 2008 So this is what i pulled of the scan tool......... manifold absolute pressure barometric pressure sensor circuit high input. Any ideas? whats the code number? Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 26, 2008 Author Report Share Posted August 26, 2008 P0108 Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted August 26, 2008 Report Share Posted August 26, 2008 ill check alldata....brb Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted August 26, 2008 Report Share Posted August 26, 2008 CIRCUIT DESCRIPTION The Manifold Absolute Pressure (MAP) sensor is mounted to the rear of the intake manifold. The MAP sensor measures the pressure changes within the intake manifold which is an indication of the engine load. The MAP sensor has a 5.0 volt reference, a ground, and a signal circuit. The MAP sensor contains a diaphragm which changes the resistance based on pressure. When the manifold pressure is low (high vacuum) the sensor output voltage is low. When the manifold pressure is high (low vacuum) the sensor output voltage is high. The MAP sensor voltage (depending on altitude) can range from 1.0-1.5 volts at idle (high vacuum) to 4.0 - 4.9 volts at wide open throttle (low vacuum). When the PCM senses a signal voltage higher than the normal operating range of the sensor, this DTC will set. what is your fuel pressure?whats maf voltage at idle? Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 29, 2008 Author Report Share Posted August 29, 2008 CIRCUIT DESCRIPTION The Manifold Absolute Pressure (MAP) sensor is mounted to the rear of the intake manifold. The MAP sensor measures the pressure changes within the intake manifold which is an indication of the engine load. The MAP sensor has a 5.0 volt reference, a ground, and a signal circuit. The MAP sensor contains a diaphragm which changes the resistance based on pressure. When the manifold pressure is low (high vacuum) the sensor output voltage is low. When the manifold pressure is high (low vacuum) the sensor output voltage is high. The MAP sensor voltage (depending on altitude) can range from 1.0-1.5 volts at idle (high vacuum) to 4.0 - 4.9 volts at wide open throttle (low vacuum). When the PCM senses a signal voltage higher than the normal operating range of the sensor, this DTC will set. what is your fuel pressure?whats maf voltage at idle? Let you kno shortly! Quote Link to comment Share on other sites More sharing options...
Jizzle Juice Posted August 30, 2008 Author Report Share Posted August 30, 2008 So i cant get the car to do it so i cant get any readings Quote Link to comment Share on other sites More sharing options...
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