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'93 Accord Cold Start Problem

Sent to Car Experts October 13 02:50 PM

My '93 Accord is having trouble starting. It will turn over but not start in the morning. If I try around noon I can get it to eventually start. Once the initial start is achieved, it will start the rest of the day. I have recently replaced the main relay, spark plugs, distributor cap and rotor. Where might my problem be?

Customer (name blocked for privacy)
Status:  Closed   Value: $9.95
Answer
October 13 2:57 PM (7 minutes and 2 seconds later)
         
REPLIEDCheck Mark
Greetings!
I would check the fuel pressure regulator. It is located on the fuel rail. It is round, about a quarter size and has a vacuum line going to it. If the regulator is leaking gas than it can cause this problem. Pull off the vacuum line that goes to the regulator. Be absolutely sure there is no gas in the vaccum line. If there is, the diaphram has ruptured and there is gas entering the engine that is not accounted for and the regulator will need to be replaced!

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1 Other Expert Agrees with this!
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1201 Car Accepts
ADVANCED LEVEL SPECIALIST
Reply
October 14 11:19 AM (20 hours and 21 minutes and 48 seconds later)
         
Reply to amedee's Post: I checked the vacuum line and did not see any gas in it. I also looked over the part on the fuel pressure regulator and did not see any traces of gas in it either. Any other thoughts?
Customer (name blocked for privacy)
Answer
October 14 4:16 PM (4 hours and 57 minutes and 41 seconds later)
         
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1201 Car Accepts
ADVANCED LEVEL SPECIALIST
Answer
October 14 5:01 PM (44 minutes and 26 seconds later)
         
REPLIEDCheck Mark

Here is the resistance specs

 

177 ohms at 212 deg F
241 ohms at 194 deg F
332 ohms at 176 deg F
467 ohms at 158 deg F
667 ohms at 140 deg F
973 ohms at 122 deg F
1459 ohms at 104 deg F
2238 ohms at 86 deg F
3520 ohms at 68 deg F
5670 ohms at 50 deg F
9420 ohms at 32 deg F
16180 ohms at -14 deg F
28680 ohms at -4 deg F
52700 ohms at -22 deg F
100700 ohms at -40 deg F



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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1201 Car Accepts
ADVANCED LEVEL SPECIALIST
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October 14 8:05 PM (3 hours and 4 minutes and 2 seconds later)
         
Reply to amedee's Post: Thank you for the additional information! Could you please tell me how to check it?
Customer (name blocked for privacy)
Answer
October 14 8:11 PM (5 minutes and 45 seconds later)
         
REPLIEDCheck Mark

All u have to do is ohm it out. Dissconect it and and take a ohm meter across the terminals.



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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1201 Car Accepts
ADVANCED LEVEL SPECIALIST
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October 15 11:52 AM (15 hours and 41 minutes and 11 seconds later)
         
Reply to amedee's Post: We checked it cold and hot and both are in line. We also tested the supply volts and that is in line as well. Third try is the charm?
Customer (name blocked for privacy)
Answer
October 15 11:59 AM (7 minutes and 32 seconds later)
         
ACCEPTEDCheck Mark
U could have a bad fuel pump. I would rec to check fuel pressure. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! But if the pressure is low, it does not mean the pump is bad. A plugged fuel filter, a pinched line, and low voltage at the pump can contribute to low fuel pressure. All three must be check before replacing the pump!

Edited by amedee on October 15 2006 at 12:00 PM

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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1201 Car Accepts
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November 30 7:15 PM (46 days and 7 hours later)
         
Relist: I still need help.
I am still having trouble with cold starts. I have replaced the coolant temperature sensor, starter and fuel filter. I have tested OK for spark, fuel coming to the rail, pressure at the rail, battery and PGM-FI relay. I have also cleaned the battery cables.

Right now the temp. is very low so I can't get it started to do some other tests.

Please guide me to what I should check next. I'm running out of ideas, time and patience!!
Customer (name blocked for privacy)
Answer
November 30 7:51 PM (35 minutes and 29 seconds later)
         
REPLIEDCheck Mark

Lets see if there is any codes in the computer. Here is how to pull codes without scan tool.

 

Extract the fault codes as follows:

Service Check Connector

Images available only to Customers.



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November 30 9:37 PM (1 hour and 46 minutes and 28 seconds later)
         
Reply to AMEDEE's Post: The check engine light came on and stayed on until I removed the jump.
Customer (name blocked for privacy)
Answer
December 1 3:32 PM (17 hours and 54 minutes and 28 seconds later)
         
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December 1 4:07 PM (35 minutes and 46 seconds later)
         
Yes, that is the order I did it in.
Customer (name blocked for privacy)
Answer
December 1 6:59 PM (2 hours and 52 minutes and 7 seconds later)
         
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AMEDEE -- ASE MASTER TECH -- 98% Positive Feedback on 1201 Car Accepts
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