niles24 Posted July 19, 2011 Share Posted July 19, 2011 I have a 5 sp 94 loyale with about 100,000 miles on it and am having some engine problems and am in need of some help. When going up any sort of pass or very long incline my engine light comes on and there is an immediate loss of power. I can push the gas pedal to the floor and kinda almost pump it and that helps a little bit, but the light is still on and there is a definite lack of power. It feels as though the engine has the choke on all of the sudden. As soon as I get to the top of the grade and shift into 5th gear (or let off the gas completely) the engine light goes off and the car returns to its normal minimal amount of power. I have some ideas on what it could be, but I am not an expert and would really appreciate some other ideas. Any help or thoughts of what it might be would be greatly appreciated, thanks! Link to comment Share on other sites More sharing options...
kayakertom Posted July 19, 2011 Share Posted July 19, 2011 Have you done the basics lately: check air filter, check timing, check color of spark plugs, check distributor cap? Other possibilities - fuel starvation due to partially clogged fuel filter and a throttle position sensor that needs the connector contacts cleaned. Link to comment Share on other sites More sharing options...
niles24 Posted July 19, 2011 Author Share Posted July 19, 2011 I've covered all the basics for the most part i think. Cleaned air filter, replaced the rotor, cap, and wires as part of regular maintenance very recently. Replaced fuel filter and spark plugs about 30,000 miles ago. I was also thinking fuel starvation, possibly the fuel pump. I actually tested it and the pressure was at 21 psi and i believe it is suppose to be at 30-35. But i jerry rigged a inline air pressure gauge with a t valve so i am not sure on the accuracy of that test. where is this throttle position sensor that you're talking about? any other ideas? thanks for the reply! Link to comment Share on other sites More sharing options...
markjw Posted July 19, 2011 Share Posted July 19, 2011 If you don't know how to pull the trouble codes from your ECU, search that here on the board, and see what that tells you. Link to comment Share on other sites More sharing options...
heartless Posted July 20, 2011 Share Posted July 20, 2011 yes, you need to get the trouble codes from the ECU - that will give you an excellent starting point. there is a write up in the USRM on how to retrieve the codes. on your car, the test plugs "should" be under the hood, behind the drivers side strut tower (in the vicinity of the fuel filter) there will be 2 single pole green connectors and 2 single pole black connectors - both pairs will plug into each other (ie: 1 male, 1 female of each color) There are other connectors in that area as well, but you only need to mess with the single pole green & black ones - leave the others alone. get the codes and reprot back what they are. Link to comment Share on other sites More sharing options...
niles24 Posted July 20, 2011 Author Share Posted July 20, 2011 Hey guys thanks again for the help, unfortunately i am having trouble retrieving the codes. The check engine light stays on (along with my other dash lights) and does not flash or turn off at all. I have two white and two green connectors that plug into each other under the hood. I assumed the two white ones were the black ones that you mentioned. I tried plugging in both sets of wires and nothing, the light just stays on and constant with the key in the "on" position. It even stays on while nothing is connected (along with the other lights. Any advice from here would be awesome. thanks Link to comment Share on other sites More sharing options...
heartless Posted July 20, 2011 Share Posted July 20, 2011 Hey guys thanks again for the help, unfortunately i am having trouble retrieving the codes. The check engine light stays on (along with my other dash lights) and does not flash or turn off at all. I have two white and two green connectors that plug into each other under the hood. I assumed the two white ones were the black ones that you mentioned. I tried plugging in both sets of wires and nothing, the light just stays on and constant with the key in the "on" position. It even stays on while nothing is connected (along with the other lights. Any advice from here would be awesome. thanks ok, yeah, white plugs - black plugs - sorry about that...(havent personally messed with EA82 in a few years) you dont get the flashing off of the CEL on the dash - you need to remove the lower part of your drivers side dash panel (section below the steering wheel) Once you have the cover off, you will see a metal box bolted under the steering column - this is the ECU - in that metal box is a single LED light that will flash your codes - look for a small round hole in the box - about as big around as a pencil eraser - inside that hole is the LED. Try both sets of plugs (one set at a time! do not use them both at the same time or you will clear codes) and see what you get both ways. Link to comment Share on other sites More sharing options...
niles24 Posted July 21, 2011 Author Share Posted July 21, 2011 Alright got the codes (thanks for the help on the location of ecu). The numbers are 11, 13 and 32. So 11 and 13 are the crank angle sensor or circuit and 32 is the O2 sensor or circuit. I am guessing codes 11 and 13 are from when i replaced the plugs a couple weeks ago and didnt plug in one of the wires all the way and tried to start it. code 32 seems is pretty straight forward, i'll check out the o2 sensor and replace it if necessary. Sound good or is there something i am missing? thanks again for the help Link to comment Share on other sites More sharing options...
heartless Posted July 22, 2011 Share Posted July 22, 2011 start with the smallest number and work upward from there. it is common for one thing to cause several codes over time. so, fix the cause of #11, and it may clear the other 2, if not, then fix the next one - #13, and so on. Link to comment Share on other sites More sharing options...
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