Starting problems 1990 Chevy Lumina car 3.1

Tiny
CMS9183
  • MEMBER
  • 1990 CHEVROLET LUMINA
I have a 1990 chevy lumina 3.1 and every day I have to spray starting fluid inside in fuel injecters to get it started i. Ve had my fuel system checked and it read any where from 35 psi to 48 psi and the guy said that it was either my crankshaft sensor bad or my ignition modual if they were bad would I have to spray starting fluid inside my injection system to get it running please help


thanx charles
Do you
have the same problem?
Yes
No
Sunday, November 18th, 2007 AT 1:57 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
The fuel pressure sounds good. check the coolant temperature sensor and the fuel pump/oil pressure sending unit.


http://www.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_16.gif



www.eautorepair.net
Was this
answer
helpful?
Yes
No
Sunday, November 18th, 2007 AT 5:05 PM
Tiny
RASMATAZ
  • MEMBER
The CTS is located at top left side of engine at coolant outlet. The fuel pump/oil pressure sending unit is where the oil sending unit is.

Inbox : Message
From: cms9183
To: rasmataz
Posted: Sun Nov 18, 2007 9:51 pm
Subject: chevy lumina 3.1
u replyed to my question and ii had difficulties finding the coolent tempeture sensor and the fuel/oil sending unit are they difficult to get to

write back asap
thanx charles

The CTS is located at top left side of engine at coolant outlet. The fuel pump/oil pressure sending unit is where the oil sending unit is.
Was this
answer
helpful?
Yes
No
Sunday, November 18th, 2007 AT 10:47 PM
Tiny
RASMATAZ
  • MEMBER
Inbox : Message
From: cms9183
To: rasmataz
Posted: Mon Nov 19, 2007 1:06 pm
Subject: sorry its me again
1 more question would the crank shaft sensor or the ignition mod. Make it not wanna start becouse in order for it to start I have to spray some starting fluid inside the injecters it fires right up could it also be my injector pulse how could I check my injecters to see which one is bad please help and im sorry for bothering u again

thanx charles

The computer uses the CTS signal to pulse the injector/s. Try this crank the engine over and listen to the injector/s do not feed it with fuel are they clicking. You can use a noid light to check for pulsing.

Or measure the resistances of the injector/s solenoid it should read 12.2 +/-2ohms.

CPS should read 900-1200 ohms. Fuel pressure must be 41-47psi
Was this
answer
helpful?
Yes
No
Monday, November 19th, 2007 AT 1:26 PM

Please login or register to post a reply.

Recommended Guides