Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

No-start, Rapidly flashing CEL

Old 01-03-2019, 05:09 PM
  #1  
Registered User
Thread Starter
 
Join Date: Jan 2019
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
No-start, Rapidly flashing CEL

Recently my truck stopped running while I was driving and now I have a no-start issue.

When I check for codes the check engine light rapidly flashes- I'm not sure what this means. The light does not flash a code sequence.

I have spark at the plugs and it appears the fuel system is working. I have not yet tested the fuel pressure, but there is fuel at the pressure regulator and the cold-start injector sprays. The fuel pump turns on when jumped at the diagnosis box and I also I replaced the fuel filter.

The MAF appears to function with the key on and the door opened on the MAF.

Since I already have spare parts off of a running vehicle, I swapped out the MAF, pressure regulator, coil and ignitor.

I have sprayed starting fluid into the open throttle body, put the air intake back together but it doesn't do anything when I crank it over. Nothing at all.

I'm not a mechanic but I fight through my problems- what else should I check?
Thanks!
1994 3.0 4x4 standard transmission.
Schrobee is offline  
Old 01-03-2019, 05:33 PM
  #2  
Registered User
 
75w90mantraN's Avatar
 
Join Date: Dec 2007
Location: Cali desert, now PNW
Posts: 555
Likes: 0
Received 10 Likes on 10 Posts
Timing components and sensors worth checking. Compression test perhaps.

Any other issues like fluid levels? Old fuel? Engine cranks over or both no crank and no start?

I'm gonna go by your confirmations on the fuel and spark though the experts do want to know more objective details.

Last edited by 75w90mantraN; 01-03-2019 at 05:35 PM.
75w90mantraN is offline  
Old 01-03-2019, 06:37 PM
  #3  
Registered User
Thread Starter
 
Join Date: Jan 2019
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Could the pick-up in the distributor effect this? With a faulty ignitor, could I still be getting spark at the plugs but not be getting the pulse to trigger the fuel injectors?
The truck cranks over but does not start.
I also replaced the EFI relay with a known-good unit.
Schrobee is offline  
Old 01-04-2019, 07:14 AM
  #4  
Registered User
 
75w90mantraN's Avatar
 
Join Date: Dec 2007
Location: Cali desert, now PNW
Posts: 555
Likes: 0
Received 10 Likes on 10 Posts
I think if your ignitor isn't working properly, you wont have spark and with no spark (or not strong enough) you wont have the demand for fuel.

To answer on the CEL, if no codes, it will just flash during diagnostics. If that is incorrect, pretty sure someone will say so. Great forum.

Last edited by 75w90mantraN; 01-04-2019 at 07:24 AM.
75w90mantraN is offline  
Old 01-04-2019, 08:19 AM
  #5  
RJR
Registered User
 
Join Date: Jul 2012
Location: Northern Colorado
Posts: 1,667
Likes: 0
Received 25 Likes on 22 Posts
Originally Posted by 75w90mantraN View Post
I think if your ignitor isn't working properly, you wont have spark and with no spark (or not strong enough) you wont have the demand for fuel.

To answer on the CEL, if no codes, it will just flash during diagnostics. If that is incorrect, pretty sure someone will say so. Great forum.
The above statements are correct. If the ECU doesn't get an igniter pulse within a certain length of time, it deactivates the fuel injectors to keep from pumping raw fuel through the system. That should throw a code, however.

If the CEL blinks about twice/second it means no stored codes. If it blinks about 4 times/second it means you've connected TE2 to E1 instead of TE1 to E1, and the system is in diag readout mode. See this thread
Diag Port Reader for more info on that.

You state that you have spark, but yet when you spray starter fluid into the intake it doesn't fire. That suggests either no spark or no compression. You probably need to verify both of those.
RJR is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
s.c.i.e.n.c.e
Newbie Tech Section
2
04-10-2010 02:53 AM
4runnerman4
95.5-2004 Tacomas & 96-2002 4Runners
10
10-19-2009 07:43 AM
GOSHRED005
86-95 Trucks & 4Runners
5
07-10-2009 06:08 AM
camshaft9083
Newbie Tech Section
1
06-09-2009 02:19 PM


Thread Tools
Search this Thread
Quick Reply: No-start, Rapidly flashing CEL


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: