maf sensor

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Jun 30, 2017 | 02:11 AM

i‘m dutch

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maf sensor

Could a bad MAF sensor prevent my car from starting ?

Jun 30, 2017 | 06:56 AM

aklim

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From: Hartford WI

I think you can disconnect it and see if it starts.

Jul 1, 2017 | 04:13 AM

i‘m dutch

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Quote:

Originally Posted by aklim

I think you can disconnect it and see if it starts.

I try but he won‘t start .

Jul 1, 2017 | 09:20 AM

BlowerWorks

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Quote:

Originally Posted by i‘m dutch

could a bad maf sensor prevent my car from starting ?

no !!!

Jul 1, 2017 | 09:21 AM

BlowerWorks

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Quote:

Originally Posted by aklim

I think you can disconnect it and see if it starts.

Jul 1, 2017 | 10:53 AM

aklim

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From: Hartford WI

Quote:

Originally Posted by i‘m dutch

I try but he won‘t start .

Check fuel pressure, spark and injection pulse.

Jul 1, 2017 | 11:05 AM

WW7

Le Mans Master

Joined: Aug 2007

Posts: 8,735

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From: WV

Yes a bad maf sensor can cause a car not to start.. I had it happen to me when I was shopping for a rebuilt maf sensor...I went through 3 rebuilt maf sensors and one was so screwed up it wouldn't even allow my 89 to start..When I disconnected the maf sensor the car started right up ( it ran bad but it did start).. I ended up going with a Blowerworks maf sensor , and after inserting their bin files into me tune the car ran great from then on...

...WW

Jul 1, 2017 | 12:50 PM

i‘m dutch

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Quote:

Originally Posted by aklim

Check fuel pressure, spark and injection pulse.

I have fuel pressure and spark and pulse . I don‘t know where to look anymore .

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Jul 1, 2017 | 02:27 PM

aklim

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From: Hartford WI

Quote:

Originally Posted by i‘m dutch

I have fuel pressure and spark and pulse . I don‘t know where to look anymore .

You checked for a good spark? What is your fuel pressure? Is it pulsing the injectors?

Jul 1, 2017 | 02:43 PM

#10

confab

Melting Slicks

Joined: Nov 2013

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From: Greater Cincinnati Area.

I dunno what year, but my 85 started and ran with a bad MAF a couple of times.

Ran like crap, but it ran.

Jul 2, 2017 | 03:27 AM

#11

i‘m dutch

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Quote:

Originally Posted by aklim

You checked for a good spark? What is your fuel pressure? Is it pulsing the injectors?

The spark is orange and i think it‘s weak but other people tell me he must run with the compression i have . ( 10088113 heads ) . I orderd a new distributor but it‘s takes 10 days to arrive . I doubt that‘s the problem because he was running before with the same spark .
The fuel pressure is 47psi and i have pulse .

Jul 2, 2017 | 03:28 AM

#12

i‘m dutch

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Quote:

Originally Posted by confab

I dunno what year, but my 85 started and ran with a bad MAF a couple of times.

Ran like crap, but it ran.

1986 Corvette

Jul 2, 2017 | 03:45 AM

#13

i‘m dutch

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The last time i stopped the engine the cooland spit out the water neck and hose .The wiring from the maf sencor wiring got wet . Is‘t possibe the 2 relays are dameged ?

Jul 2, 2017 | 08:58 AM

#14

confab

Melting Slicks

Joined: Nov 2013

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From: Greater Cincinnati Area.

Any codes in this thing? A couple of weeks ago, mine wouldn't start.. Would start and run, but ran terrible, kept flashing the check engine light, but no codes.

ECM died (again!)

Jul 2, 2017 | 10:14 AM

#15

i‘m dutch

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Quote:

Originally Posted by confab

Any codes in this thing? A couple of weeks ago, mine wouldn't start.. Would start and run, but ran terrible, kept flashing the check engine light, but no codes.

ECM died (again!)

No codes and i try a new ecm and it still won‘t start

Jul 2, 2017 | 10:17 AM

#16

aklim

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From: Hartford WI

Quote:

Originally Posted by i‘m dutch

No codes and i try a new ecm and it still won‘t start

Just to clarify, you have tried a new ECM with the new chip, right?

Jul 2, 2017 | 11:44 AM

#17

i‘m dutch

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Quote:

Originally Posted by aklim

Just to clarify, you have tried a new ECM with the new chip, right?

yes

Jul 6, 2017 | 12:06 PM

#18

kael

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Finalist 2020 C4 of the Year - Unmodified

Quote:

Originally Posted by i‘m dutch

The last time i stopped the engine the cooland spit out the water neck and hose .The wiring from the maf sencor wiring got wet . Is‘t possibe the 2 relays are dameged ?

If the relays at the firewall next to battery got wet with coolant, wouldn't think so since connectors are face down.

I'd take them out and clean/dry them anyway, coolant is nasty.

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