when I plug in the MAF the car wont run rpm wont go past 4k. I did the diagnose and its giving me P1500 code which relate to the generator/alternator. I check the battery, alternator, its fine
Asked by spyderbimmer Mar 27, 2012 at 02:52 PM about the 1999 Mitsubishi Eclipse Spyder 2 Dr GS Convertible
Question type: Maintenance & Repair
when I plug in the MAF the car wont run. even if u rev the gas, rpm wont go past 4k.
but when I unplug the MAF it will run normal but the engine light is on. so farr I
replace 02sensor, map, throtte sensor, MAF, EGR, and clean the idle air control and
still the same, it didnt resolve the problem. I brought the car to the shop to have it
diagnose, and its reading P1500 code which is generator/alternator. I have tge
battery, alternator, and wires harness tested and everything is normal. as far as the
voltage. can somebody help me and tell me what ishould I do to fix the problem.
thanks
7 Answers
drdc answered 5 years ago
What was the voltage going into battery,anything over 14.7 volts is not good.Also check the reference voltage at the M.A.F sensor input voltage should be 5.0 volts,you may get a reading of 4.7 to 5.0 volts that is ok but not ok if it's below 4.5 or more than 5.0 volts check these first post your results and we will go from there.
spyderbimmer answered 5 years ago
i did check the voltage from the battery which is 14.7 meaning its good. and the MAF sensor is 5.0, alternator is 10.9. according to the test results, these are normal.do you have any idea on what might be the problem? im beginning to think its the ecu.
drdc answered 5 years ago
The 10.9volts at the alternator was that taken while the system was under load,using an alternator battery load tester.Need to know how you got the 10.9volts.
drdc answered 5 years ago
You have an open circuit either inside the alternator (FR terminal, pin 4, green wire) or a bad connection (open circuit) from this terminal to pin 41 of the ECU (could even be the ECU, but least likely). Check this 4 pin connector first. Then measure voltage on pin 4 while turning headlights on - voltage should drop. The ECU uses this signal to control idle speed when heavy electrical loads are turned on.
spyderbimmer answered 5 years ago
i did check all 4 wires including the ground wire that is connected to the battery and everything is fine. at this point the only problem i suspect is the ECU. do you have other idea ? thanks
drdc answered 5 years ago
Check the voltage going into the ECU first before changing parts that are non returnable,engine off should be battery voltage so measure terminal voltage first then ECU voltage,they should be the same.Any more than .5 voltage drop you have a problem with resistance,keep me posted.drdc
Daisie answered 2 years ago
Does a 1998 Eclipse Spyder GS have a voltage regulator ??
Your Answer
Related Questions
-
P0102 code regarding MAF what does it mean? 5 answers
04 Eclipse Spyder 3.0 V-6 convertible threw out P0102 code. I cleaned MAF and throttle body and it ran better. After looking into changing rear bank of plugs and removing a couple of brackets arou...
2004 Mitsubishi Eclipse Spyder GT Spyder
-
Maintenance & Repair
-
ECU doesnt give out a reading on a 98 eclipse spyder. car runs and drives fine. check engine light is on 1 answer
ecu doesn't give a reading when plugged in to. car runs and drives fine, check engine light is on
1998 Mitsubishi Eclipse Spyder 2 Dr GS Convertible
-
Maintenance & Repair
-
Whats wrong 10 answers
My car has been running fine. Stop at a friends an left it idiling while ran inside. I came out an it was off, now it wont start.
2002 Mitsubishi Eclipse Spyder GT Spyder
-
Maintenance & Repair
-
Car wont start 3 answers
Turn the key, I get power to the radio and lights but go to turn the car over, no sounds, power to the radio goes out. Tried jumping the battery did the same thing. Im thinking alternator but idk, ...
2003 Mitsubishi Eclipse Spyder GT Spyder
-
Maintenance & Repair
-
Battery or Alternator problem? 3 answers
I go to start my car by a boost. Once the car is started and boost cables are taken off the car battery light comes on, revs up on its own till battery light goes back off, then repeats the same pro...
2004 Mitsubishi Lancer ES
-
Maintenance & Repair
Looking for a Used Eclipse Spyder in your area?
CarGurus has 519 nationwide Eclipse Spyder listings starting at $1,791.
Shortcuts
Search Mitsubishi Eclipse Spyder Questions
Mitsubishi Eclipse Spyder Experts
| #1 |
|
dandyoun
Reputation
1,710
|
| #2 |
|
spyder99
Reputation
360
|
| #3 |
|
Daniel Foster
Reputation
260
|
Related Models For Sale
Used Cars For Sale
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.