Nissan Repair: 1995 Nissan Quest, fuel pressure regulator, engine cranks

Question
Hello Calvin,
I have been looking at the question on the intake boot and the manifold and the cold start for my 1995 Nissan quest.  I'm not for sure if it fits my situation.  If I turn the ignition over some, then let it sit a second, then turn it over all the way, it usually will start.  Does this sound like a similar situation?  If not, what could it be?  If so, did we find out what the part was called in the Nissan?  Thanks,
Kendra

Answer
Hi Kendra -

I think instead of the cold start valve, there is a fuel check valve, that keeps pressure in the system for easier starting. Try checking this -

Also, did some research and found some information that might be of interest to you:

There are several tips on this problem. Here are a few. I would try the one for the ground strap first. This is fairly common.

Info source: Jay, Mid City Nissan, IL.
Symptoms: Engine would crank for several seconds before starting. There was 'No Failure' in Self Diagnosis. Fuel pressure was low while cranking. Fuel pressure was normal when engine started. Fuel pressure would drop to 0 psi. within 3-5 minutes after engine was turned off. When the fuel return line was pinched off the system would hold pressure.
Field fix: Fuel pressure regulator was replaced to resolve incident.

Info source: Joe, Southern Nissan, Va.
Symptoms: Engine cranks for an excessively long time before starting. Incident worse on cold starts. Once engine starts it runs normally. There are no DTC’s in self diagnosis. Fuel pressure is normal during incident.
Field fix: Tech found start signal was ‘Off’ when engine was cranking (CONSULT, Data Monitor). BR/W wire for start signal was open near connector M1. Harness repaired to resolve incident. Note: also check connector M50/M105.

Info source: Bill Cross, Jim Click Nis Jp/Eagle
CONDITION: Engine intermittenly cranks over but won't start. Occasionally the engine may fail to maintain idle speed while driving.

SOLUTION: Inspect for a loose connection at the ECCS relay. Fully seating the ECCS relay into the connector resolved this incident.

Symptoms: The engine is difficult to start when cold (extended crank time). The cranking speed is normal. When the engine does start, it idles rough and hesitates when accelerating from a stop. The incident lasts no more than 20 seconds and will notoccur again until a overnight cold-soak.
Field fix: No 'start signal' was found when cranking the engine during the incident. Pin 20 at the ECM connector was pushed out of the place. The pin terminals were tightened, and the pin fully seated to resolve the incident. Page EC-248 of the '95 Maxima service manual shows the start signal wiring diagram. Note: the start signal is easily monitored with CONSULT. Select the 'Engine' menu, then touch 'Data Monitor' then page down to 'Start Signal'. Thestart signal should be 'On' while the ignition switch is in the start position and ‘Off’ at all other times.

Customer Symptom: The engine is hard to start sometimes.
Incident Description: The incident could be duplicated about 2 out of 10 starts. When incident occurs the engine is very hard to start and a popping sound, like the engine is out of time, can be heard.
Root Cause: Poor engine ground between transmission and engine.
Service Procedure: Fabricate a jumper by placing eyelets on both ends of a length of 10 gauge wire. Connect one end to one of the upper bell housing bolts and the other end to one of the lower engine oil pan bolts.

Hope this helps Kendra -
aloha
calvin